From 32a2d13fccec972944a850b0992cf1d28d06c188 Mon Sep 17 00:00:00 2001
From: Leendert de Borst <ldeborst@xivisoft.com>
Date: Mon, 14 Jul 2025 21:10:06 +0200
Subject: [PATCH] Cache localized strings for performance (#1006)

---
 .../AliasVault.Client/Auth/Pages/Login.razor  | 122 +++++++++++----
 .../Auth/Pages/Register.razor                 |  59 ++++++--
 .../Pages/Setup/Components/PasswordStep.razor |  52 +++++--
 .../Components/TermsAndConditionsStep.razor   |  20 ++-
 .../Pages/Setup/Components/UsernameStep.razor |  42 ++++--
 .../AliasVault.Client/Auth/Pages/Unlock.razor |  70 ++++++---
 .../Main/Components/Email/EmailModal.razor    |  70 ++++++---
 .../Main/Components/Email/EmailPreview.razor  |  77 +++++++---
 .../Main/Components/Email/EmailRow.razor      |  14 +-
 .../Main/Components/Email/RecentEmails.razor  |  36 +++--
 .../Components/Forms/CopyPasteFormRow.razor   |   8 +-
 .../Components/Forms/EditEmailFormRow.razor   |  32 +++-
 .../Settings/DefaultPasswordSettings.razor    |  16 +-
 .../Settings/PasswordSettingsPopup.razor      |  52 +++++--
 .../Main/Components/TotpCodes/TotpCodes.razor |  54 +++++--
 .../Components/TotpCodes/TotpViewer.razor     |  16 +-
 .../Widgets/CreateNewIdentityWidget.razor     |  49 ++++--
 .../Components/Widgets/SearchWidget.razor     | 141 ++++++++++--------
 .../Main/Layout/Footer.razor                  |  26 ++--
 .../Main/Layout/TopMenu.razor                 |  79 ++++++++--
 .../Main/Pages/Credentials/Home.razor         |  66 ++++++--
 .../Main/Pages/Emails/Home.razor              |  51 +++++--
 .../Settings/ImportExport/ImportExport.razor  |  49 ++++--
 .../Settings/Security/ChangePassword.razor    |  60 ++++++--
 .../Settings/Security/DeleteAccount.razor     |  86 ++++++++---
 .../Pages/Settings/Security/Disable2Fa.razor  |  50 +++++--
 .../Pages/Settings/Security/Enable2Fa.razor   |  45 ++++--
 .../Pages/Settings/Security/Security.razor    |  22 ++-
 .../Main/Pages/Welcome.razor                  | 108 ++++++++++----
 29 files changed, 1179 insertions(+), 393 deletions(-)

diff --git a/apps/server/AliasVault.Client/Auth/Pages/Login.razor b/apps/server/AliasVault.Client/Auth/Pages/Login.razor
index 4639d58cd..7324a0459 100644
--- a/apps/server/AliasVault.Client/Auth/Pages/Login.razor
+++ b/apps/server/AliasVault.Client/Auth/Pages/Login.razor
@@ -14,17 +14,17 @@
 @if (_showTwoFactorAuthStep)
 {
     <h2 class="text-2xl font-bold text-gray-900 dark:text-white mb-4">
-        @Localizer["TwoFactorAuthenticationTitle"]
+        @_twoFactorAuthenticationTitle
     </h2>
 
     <ServerValidationErrors @ref="_serverValidationErrors" />
 
-    <p class="text-gray-700 dark:text-gray-300 mb-6">@Localizer["TwoFactorAuthenticationDescription"]</p>
+    <p class="text-gray-700 dark:text-gray-300 mb-6">@_twoFactorAuthenticationDescription</p>
     <div class="w-full">
         <EditForm Model="_loginModel2Fa" FormName="login-with-2fa" OnValidSubmit="Handle2Fa" method="post" class="space-y-6">
             <DataAnnotationsValidator/>
             <div>
-                <label for="two-factor-code" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["AuthenticatorCodeLabel"]</label>
+                <label for="two-factor-code" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_authenticatorCodeLabel</label>
                 <InputNumber @bind-Value="_loginModel2Fa.TwoFactorCode"
                             id="two-factor-code"
                             @oninput="OnTwoFactorCodeInput"
@@ -37,48 +37,48 @@
                     <InputCheckbox @bind-Value="_loginModel2Fa.RememberMachine" id="remember-machine" class="w-4 h-4 border border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-primary-300 dark:bg-gray-700 dark:border-gray-600 dark:focus:ring-primary-600 dark:ring-offset-gray-800"/>
                 </div>
                 <div class="ml-3 text-sm">
-                    <label for="remember-machine" class="font-medium text-gray-900 dark:text-white">@Localizer["RememberMachineLabel"]</label>
+                    <label for="remember-machine" class="font-medium text-gray-900 dark:text-white">@_rememberMachineLabel</label>
                 </div>
             </div>
-            <button type="submit" class="w-full text-white bg-primary-600 hover:bg-primary-700 focus:ring-4 focus:outline-none focus:ring-primary-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@Localizer["LoginButton"]</button>
+            <button type="submit" class="w-full text-white bg-primary-600 hover:bg-primary-700 focus:ring-4 focus:outline-none focus:ring-primary-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@_loginButton</button>
         </EditForm>
     </div>
     <p class="mt-6 text-sm text-gray-700 dark:text-gray-300">
-        @Localizer["DontHaveAuthenticatorText"]
-        <button @onclick="LoginWithRecoveryCode" class="text-primary-600 hover:underline dark:text-primary-500">@Localizer["LoginWithRecoveryCodeLink"]</button>.
+        @_dontHaveAuthenticatorText
+        <button @onclick="LoginWithRecoveryCode" class="text-primary-600 hover:underline dark:text-primary-500">@_loginWithRecoveryCodeLink</button>.
     </p>
 }
 else if (_showLoginWithRecoveryCodeStep)
 {
     <h2 class="text-2xl font-bold text-gray-900 dark:text-white mb-4">
-        @Localizer["RecoveryCodeVerificationTitle"]
+        @_recoveryCodeVerificationTitle
     </h2>
 
     <ServerValidationErrors @ref="_serverValidationErrors" />
 
     <p class="text-gray-700 dark:text-gray-300 mb-6">
-        @Localizer["RecoveryCodeDescription"]
+        @_recoveryCodeDescription
     </p>
     <div class="w-full">
         <EditForm Model="_loginModelRecoveryCode" FormName="login-with-recovery-code" OnValidSubmit="HandleRecoveryCode" method="post" class="space-y-6">
             <DataAnnotationsValidator/>
             <div>
-                <label for="two-factor-code" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["RecoveryCodeLabel"]</label>
+                <label for="two-factor-code" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_recoveryCodeLabel</label>
                 <InputText @bind-Value="_loginModelRecoveryCode.RecoveryCode" id="recovery-code" class="bg-gray-50 border border-gray-300 text-gray-900 sm:text-sm rounded-lg focus:ring-primary-600 focus:border-primary-600 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" autocomplete="off"/>
                 <ValidationMessage For="() => _loginModelRecoveryCode.RecoveryCode" class="text-red-600 dark:text-red-400 text-sm mt-1"/>
             </div>
-            <button type="submit" class="w-full text-white bg-primary-600 hover:bg-primary-700 focus:ring-4 focus:outline-none focus:ring-primary-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@Localizer["LoginButton"]</button>
+            <button type="submit" class="w-full text-white bg-primary-600 hover:bg-primary-700 focus:ring-4 focus:outline-none focus:ring-primary-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@_loginButton</button>
         </EditForm>
     </div>
     <p class="mt-6 text-sm text-gray-700 dark:text-gray-300">
-        @Localizer["RegainedAccessText"]
-        <button @onclick="LoginWithAuthenticator" class="text-primary-600 hover:underline dark:text-primary-500">@Localizer["LoginWithAuthenticatorLink"]</button> instead.
+        @_regainedAccessText
+        <button @onclick="LoginWithAuthenticator" class="text-primary-600 hover:underline dark:text-primary-500">@_loginWithAuthenticatorLink</button> instead.
     </p>
 }
 else
 {
     <h2 class="text-2xl font-bold text-gray-900 dark:text-white">
-        @Localizer["PageTitle"]
+        @_pageTitle
     </h2>
 
     <FullScreenLoadingIndicator @ref="_loadingIndicator"/>
@@ -87,13 +87,13 @@ else
         <ServerValidationErrors @ref="_serverValidationErrors"/>
         <DataAnnotationsValidator/>
         <div>
-            <label asp-for="Input.Email" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["UsernameOrEmailLabel"]</label>
-            <InputTextField id="email" @bind-Value="_loginModel.Username" type="text" placeholder="@Localizer["UsernamePlaceholder"]" autocapitalize="off" autocorrect="off"/>
+            <label asp-for="Input.Email" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_usernameOrEmailLabel</label>
+            <InputTextField id="email" @bind-Value="_loginModel.Username" type="text" placeholder="@_usernamePlaceholder" autocapitalize="off" autocorrect="off"/>
             <ValidationMessage For="() => _loginModel.Username"/>
         </div>
         <div>
-            <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["PasswordLabel"]</label>
-            <InputTextField id="password" @bind-Value="_loginModel.Password" type="password" placeholder="@Localizer["PasswordPlaceholder"]"/>
+            <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_passwordLabel</label>
+            <InputTextField id="password" @bind-Value="_loginModel.Password" type="password" placeholder="@_passwordPlaceholder"/>
             <ValidationMessage For="() => _loginModel.Password"/>
         </div>
 
@@ -102,16 +102,16 @@ else
                 <InputCheckbox @bind-Value="_loginModel.RememberMe" id="remember" class="w-4 h-4 border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-primary-300 dark:focus:ring-primary-600 dark:ring-offset-gray-800 dark:bg-gray-700 dark:border-gray-600" />
             </div>
             <div class="ml-3 text-sm">
-                <label for="remember" class="font-medium text-gray-900 dark:text-white">@Localizer["RememberMeLabel"]</label>
+                <label for="remember" class="font-medium text-gray-900 dark:text-white">@_rememberMeLabel</label>
             </div>
-            <a href="/user/forgot-password" class="ml-auto text-sm text-primary-700 hover:underline dark:text-primary-500">@Localizer["LostPasswordLink"]</a>
+            <a href="/user/forgot-password" class="ml-auto text-sm text-primary-700 hover:underline dark:text-primary-500">@_lostPasswordLink</a>
         </div>
 
-        <button type="submit" class="w-full px-5 py-3 text-base font-medium text-center text-white bg-primary-700 rounded-lg hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 sm:w-auto dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@Localizer["LoginToAccountButton"]</button>
+        <button type="submit" class="w-full px-5 py-3 text-base font-medium text-center text-white bg-primary-700 rounded-lg hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 sm:w-auto dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@_loginToAccountButton</button>
         @if (Config.PublicRegistrationEnabled)
         {
             <div class="text-sm font-medium text-gray-500 dark:text-gray-400">
-                @Localizer["NoAccountYetText"] <a href="/user/setup" class="text-primary-700 hover:underline dark:text-primary-500">@Localizer["CreateNewVaultLink"]</a>
+                @_noAccountYetText <a href="/user/setup" class="text-primary-700 hover:underline dark:text-primary-500">@_createNewVaultLink</a>
             </div>
         }
     </EditForm>
@@ -133,6 +133,35 @@ else
     private SrpSession _clientSession = new();
     private byte[] _passwordHash = [];
 
+    // Cached localized strings
+    private string _twoFactorAuthenticationTitle = string.Empty;
+    private string _twoFactorAuthenticationDescription = string.Empty;
+    private string _authenticatorCodeLabel = string.Empty;
+    private string _rememberMachineLabel = string.Empty;
+    private string _loginButton = string.Empty;
+    private string _dontHaveAuthenticatorText = string.Empty;
+    private string _loginWithRecoveryCodeLink = string.Empty;
+    private string _recoveryCodeVerificationTitle = string.Empty;
+    private string _recoveryCodeDescription = string.Empty;
+    private string _recoveryCodeLabel = string.Empty;
+    private string _regainedAccessText = string.Empty;
+    private string _loginWithAuthenticatorLink = string.Empty;
+    private string _pageTitle = string.Empty;
+    private string _usernameOrEmailLabel = string.Empty;
+    private string _usernamePlaceholder = string.Empty;
+    private string _passwordLabel = string.Empty;
+    private string _passwordPlaceholder = string.Empty;
+    private string _rememberMeLabel = string.Empty;
+    private string _lostPasswordLink = string.Empty;
+    private string _loginToAccountButton = string.Empty;
+    private string _noAccountYetText = string.Empty;
+    private string _createNewVaultLink = string.Empty;
+    private string _loggingInMessage = string.Empty;
+    private string _loginErrorMessage = string.Empty;
+    private string _loginRequestErrorMessage = string.Empty;
+    private string _verifyingRecoveryCodeMessage = string.Empty;
+    private string _verifyingTwoFactorCodeMessage = string.Empty;
+
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
@@ -144,6 +173,35 @@ else
             // Already authenticated, redirect to home page.
             NavigationManager.NavigateTo("/");
         }
+
+        // Cache localized strings to prevent infinite rendering loops
+        _twoFactorAuthenticationTitle = Localizer["TwoFactorAuthenticationTitle"];
+        _twoFactorAuthenticationDescription = Localizer["TwoFactorAuthenticationDescription"];
+        _authenticatorCodeLabel = Localizer["AuthenticatorCodeLabel"];
+        _rememberMachineLabel = Localizer["RememberMachineLabel"];
+        _loginButton = Localizer["LoginButton"];
+        _dontHaveAuthenticatorText = Localizer["DontHaveAuthenticatorText"];
+        _loginWithRecoveryCodeLink = Localizer["LoginWithRecoveryCodeLink"];
+        _recoveryCodeVerificationTitle = Localizer["RecoveryCodeVerificationTitle"];
+        _recoveryCodeDescription = Localizer["RecoveryCodeDescription"];
+        _recoveryCodeLabel = Localizer["RecoveryCodeLabel"];
+        _regainedAccessText = Localizer["RegainedAccessText"];
+        _loginWithAuthenticatorLink = Localizer["LoginWithAuthenticatorLink"];
+        _pageTitle = Localizer["PageTitle"];
+        _usernameOrEmailLabel = Localizer["UsernameOrEmailLabel"];
+        _usernamePlaceholder = Localizer["UsernamePlaceholder"];
+        _passwordLabel = Localizer["PasswordLabel"];
+        _passwordPlaceholder = Localizer["PasswordPlaceholder"];
+        _rememberMeLabel = Localizer["RememberMeLabel"];
+        _lostPasswordLink = Localizer["LostPasswordLink"];
+        _loginToAccountButton = Localizer["LoginToAccountButton"];
+        _noAccountYetText = Localizer["NoAccountYetText"];
+        _createNewVaultLink = Localizer["CreateNewVaultLink"];
+        _loggingInMessage = Localizer["LoggingInMessage"];
+        _loginErrorMessage = Localizer["LoginErrorMessage"];
+        _loginRequestErrorMessage = Localizer["LoginRequestErrorMessage"];
+        _verifyingRecoveryCodeMessage = Localizer["VerifyingRecoveryCodeMessage"];
+        _verifyingTwoFactorCodeMessage = Localizer["VerifyingTwoFactorCodeMessage"];
     }
 
     /// <inheritdoc />
@@ -178,7 +236,7 @@ else
     /// </summary>
     private async Task HandleLogin()
     {
-        _loadingIndicator.Show(Localizer["LoggingInMessage"]);
+        _loadingIndicator.Show(_loggingInMessage);
         _serverValidationErrors.Clear();
 
         try
@@ -199,7 +257,7 @@ else
         catch
         {
             // If in release mode show a generic error.
-            _serverValidationErrors.AddError(Localizer["LoginErrorMessage"]);
+            _serverValidationErrors.AddError(_loginErrorMessage);
         }
 #endif
         finally
@@ -233,7 +291,7 @@ else
         {
             return
             [
-                Localizer["LoginRequestErrorMessage"],
+                _loginRequestErrorMessage,
         ];
         }
 
@@ -264,7 +322,7 @@ else
         {
             return
             [
-                Localizer["LoginRequestErrorMessage"],
+                _loginRequestErrorMessage,
         ];
         }
 
@@ -284,7 +342,7 @@ else
     /// </summary>
     private async Task HandleRecoveryCode()
     {
-        _loadingIndicator.Show(Localizer["VerifyingRecoveryCodeMessage"]);
+        _loadingIndicator.Show(_verifyingRecoveryCodeMessage);
         _serverValidationErrors.Clear();
 
         try
@@ -308,7 +366,7 @@ else
             var validateLoginResponse = JsonSerializer.Deserialize<ValidateLoginResponse>(responseContent);
             if (validateLoginResponse == null)
             {
-                _serverValidationErrors.AddError(Localizer["LoginRequestErrorMessage"]);
+                _serverValidationErrors.AddError(_loginRequestErrorMessage);
                 return;
             }
 
@@ -328,7 +386,7 @@ else
         catch
         {
             // If in release mode show a generic error.
-            _serverValidationErrors.AddError(Localizer["LoginErrorMessage"]);
+            _serverValidationErrors.AddError(_loginErrorMessage);
         }
 #endif
         finally
@@ -342,7 +400,7 @@ else
     /// </summary>
     private async Task Handle2Fa()
     {
-        _loadingIndicator.Show(Localizer["VerifyingTwoFactorCodeMessage"]);
+        _loadingIndicator.Show(_verifyingTwoFactorCodeMessage);
         _serverValidationErrors.Clear();
 
         try
@@ -366,7 +424,7 @@ else
             var validateLoginResponse = JsonSerializer.Deserialize<ValidateLoginResponse>(responseContent);
             if (validateLoginResponse == null)
             {
-                _serverValidationErrors.AddError(Localizer["LoginRequestErrorMessage"]);
+                _serverValidationErrors.AddError(_loginRequestErrorMessage);
                 return;
             }
 
@@ -386,7 +444,7 @@ else
         catch
         {
             // If in release mode show a generic error.
-            _serverValidationErrors.AddError(Localizer["LoginErrorMessage"]);
+            _serverValidationErrors.AddError(_loginErrorMessage);
         }
 #endif
         finally
diff --git a/apps/server/AliasVault.Client/Auth/Pages/Register.razor b/apps/server/AliasVault.Client/Auth/Pages/Register.razor
index 00b0fcafa..17a56119b 100644
--- a/apps/server/AliasVault.Client/Auth/Pages/Register.razor
+++ b/apps/server/AliasVault.Client/Auth/Pages/Register.razor
@@ -7,7 +7,7 @@
 @using Microsoft.Extensions.Localization
 
 <h2 class="text-2xl font-bold text-gray-900 dark:text-white">
-    @Localizer["PageTitle"]
+    @_pageTitle
 </h2>
 
 <FullScreenLoadingIndicator @ref="_loadingIndicator" />
@@ -16,18 +16,18 @@
 <EditForm Model="_registerModel" OnValidSubmit="HandleRegister" class="mt-8 space-y-6">
     <DataAnnotationsValidator/>
     <div>
-        <label asp-for="Input.Email" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["UsernameOrEmailLabel"]</label>
-        <InputTextField id="email" @bind-Value="_registerModel.Username" type="text" placeholder="@Localizer["UsernamePlaceholder"]" />
+        <label asp-for="Input.Email" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_usernameOrEmailLabel</label>
+        <InputTextField id="email" @bind-Value="_registerModel.Username" type="text" placeholder="@_usernamePlaceholder" />
         <ValidationMessage For="() => _registerModel.Username"/>
     </div>
     <div>
-        <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["PasswordLabel"]</label>
-        <InputTextField id="password" @bind-Value="_registerModel.Password" type="password" placeholder="@Localizer["PasswordPlaceholder"]" />
+        <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_passwordLabel</label>
+        <InputTextField id="password" @bind-Value="_registerModel.Password" type="password" placeholder="@_passwordPlaceholder" />
         <ValidationMessage For="() => _registerModel.Password"/>
     </div>
     <div>
-        <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["ConfirmPasswordLabel"]</label>
-        <InputTextField id="password2" @bind-Value="_registerModel.PasswordConfirm" type="password" placeholder="@Localizer["PasswordPlaceholder"]" />
+        <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_confirmPasswordLabel</label>
+        <InputTextField id="password2" @bind-Value="_registerModel.PasswordConfirm" type="password" placeholder="@_passwordPlaceholder" />
         <ValidationMessage For="() => _registerModel.PasswordConfirm"/>
     </div>
 
@@ -36,14 +36,14 @@
             <InputCheckbox id="terms" @bind-Value="_registerModel.AcceptTerms" class="w-4 h-4 border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-primary-300 dark:focus:ring-primary-600 dark:ring-offset-gray-800 dark:bg-gray-700 dark:border-gray-600" />
         </div>
         <div class="ml-3 text-sm">
-            <label for="terms" class="font-medium text-gray-900 dark:text-white">@Localizer["AcceptTermsLabel"] <a href="https://github.com/lanedirt/AliasVault/blob/main/LICENSE.md" target="_blank" class="text-primary-700 hover:underline dark:text-primary-500">@Localizer["TermsAndConditionsLink"]</a></label>
+            <label for="terms" class="font-medium text-gray-900 dark:text-white">@_acceptTermsLabel <a href="https://github.com/lanedirt/AliasVault/blob/main/LICENSE.md" target="_blank" class="text-primary-700 hover:underline dark:text-primary-500">@_termsAndConditionsLink</a></label>
             <ValidationMessage For="() => _registerModel.AcceptTerms"/>
         </div>
     </div>
 
-    <button type="submit" class="w-full px-5 py-3 text-base font-medium text-center text-white bg-primary-700 rounded-lg hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 sm:w-auto dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@Localizer["CreateAccountButton"]</button>
+    <button type="submit" class="w-full px-5 py-3 text-base font-medium text-center text-white bg-primary-700 rounded-lg hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 sm:w-auto dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">@_createAccountButton</button>
     <div class="text-sm font-medium text-gray-500 dark:text-gray-400">
-        @Localizer["AlreadyRegisteredText"] <a href="/user/login" class="text-primary-700 hover:underline dark:text-primary-500">@Localizer["LoginHereLink"]</a>
+        @_alreadyRegisteredText <a href="/user/login" class="text-primary-700 hover:underline dark:text-primary-500">@_loginHereLink</a>
     </div>
 </EditForm>
 
@@ -54,9 +54,44 @@
 
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Auth.Register", "AliasVault.Client");
 
+    // Cached localized strings
+    private string _pageTitle = string.Empty;
+    private string _usernameOrEmailLabel = string.Empty;
+    private string _usernamePlaceholder = string.Empty;
+    private string _passwordLabel = string.Empty;
+    private string _passwordPlaceholder = string.Empty;
+    private string _confirmPasswordLabel = string.Empty;
+    private string _acceptTermsLabel = string.Empty;
+    private string _termsAndConditionsLink = string.Empty;
+    private string _createAccountButton = string.Empty;
+    private string _alreadyRegisteredText = string.Empty;
+    private string _loginHereLink = string.Empty;
+    private string _creatingAccountMessage = string.Empty;
+    private string _registrationErrorMessage = string.Empty;
+
+    protected override async Task OnInitializedAsync()
+    {
+        await base.OnInitializedAsync();
+        
+        // Cache localized strings to prevent infinite rendering loops
+        _pageTitle = Localizer["PageTitle"];
+        _usernameOrEmailLabel = Localizer["UsernameOrEmailLabel"];
+        _usernamePlaceholder = Localizer["UsernamePlaceholder"];
+        _passwordLabel = Localizer["PasswordLabel"];
+        _passwordPlaceholder = Localizer["PasswordPlaceholder"];
+        _confirmPasswordLabel = Localizer["ConfirmPasswordLabel"];
+        _acceptTermsLabel = Localizer["AcceptTermsLabel"];
+        _termsAndConditionsLink = Localizer["TermsAndConditionsLink"];
+        _createAccountButton = Localizer["CreateAccountButton"];
+        _alreadyRegisteredText = Localizer["AlreadyRegisteredText"];
+        _loginHereLink = Localizer["LoginHereLink"];
+        _creatingAccountMessage = Localizer["CreatingAccountMessage"];
+        _registrationErrorMessage = Localizer["RegistrationErrorMessage"];
+    }
+
     private async Task HandleRegister()
     {
-        _loadingIndicator.Show(Localizer["CreatingAccountMessage"]);
+        _loadingIndicator.Show(_creatingAccountMessage);
         _serverValidationErrors.Clear();
 
         var (success, errorMessage) = await UserRegistrationService.RegisterUserAsync(_registerModel.Username, _registerModel.Password);
@@ -67,7 +102,7 @@
         }
         else
         {
-            _serverValidationErrors.AddError(errorMessage ?? Localizer["RegistrationErrorMessage"]);
+            _serverValidationErrors.AddError(errorMessage ?? _registrationErrorMessage);
             StateHasChanged();
         }
 
diff --git a/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/PasswordStep.razor b/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/PasswordStep.razor
index 707f37609..8c700b677 100644
--- a/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/PasswordStep.razor
+++ b/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/PasswordStep.razor
@@ -17,7 +17,7 @@
                 </div>
                 <div class="ml-3 bg-blue-100 dark:bg-blue-900 rounded-lg p-3">
                     <p class="text-sm text-gray-900 dark:text-white">
-                        @Localizer["WelcomeMessage"]
+                        @_welcomeMessage
                     </p>
                 </div>
             </div>
@@ -25,26 +25,26 @@
 
         <div class="p-4 mb-6 bg-gray-100 dark:bg-gray-900 rounded-lg text-gray-900 dark:text-gray-100">
             <p class="text-sm font-semibold">
-                @Localizer["ImportantNote"]
+                @_importantNote
             </p>
             <ul class="text-sm mt-3 list-disc list-inside">
-                <li>@Localizer["SecurityPoint1"]</li>
-                <li>@Localizer["SecurityPoint2"]</li>
-                <li>@Localizer["SecurityPoint3"]</li>
+                <li>@_securityPoint1</li>
+                <li>@_securityPoint2</li>
+                <li>@_securityPoint3</li>
             </ul>
         </div>
 
         <div class="space-y-4">
             <div>
                 <div class="">
-                    <EditFormRow Id="password" Label="@Localizer["MasterPasswordLabel"]" @bind-Value="Password" Type="password" Placeholder="@Localizer["MasterPasswordPlaceholder"]" OnFocus="@OnPasswordInputFocus"/>
+                    <EditFormRow Id="password" Label="@_masterPasswordLabel" @bind-Value="Password" Type="password" Placeholder="@_masterPasswordPlaceholder" OnFocus="@OnPasswordInputFocus"/>
                 </div>
                 <div class="mt-4">
-                    <EditFormRow Id="confirmPassword" Label="@Localizer["ConfirmMasterPasswordLabel"]" @bind-Value="ConfirmPassword" Type="password" Placeholder="@Localizer["ConfirmMasterPasswordPlaceholder"]" OnFocus="@OnPasswordInputFocus" />
+                    <EditFormRow Id="confirmPassword" Label="@_confirmMasterPasswordLabel" @bind-Value="ConfirmPassword" Type="password" Placeholder="@_confirmMasterPasswordPlaceholder" OnFocus="@OnPasswordInputFocus" />
                 </div>
                 @if (_isValidating)
                 {
-                    <div class="mt-2 text-sm text-gray-600 dark:text-gray-400">@Localizer["ValidatingPasswordMessage"]</div>
+                    <div class="mt-2 text-sm text-gray-600 dark:text-gray-400">@_validatingPasswordMessage</div>
                 }
                 else if (_isValid)
                 {
@@ -54,7 +54,7 @@
                     }
                     else
                     {
-                        <div class="mt-2 text-sm text-green-600 dark:text-green-400">@Localizer["PasswordValidAndStrongMessage"]</div>
+                        <div class="mt-2 text-sm text-green-600 dark:text-green-400">@_passwordValidAndStrongMessage</div>
                     }
                 }
                 else if (!string.IsNullOrEmpty(_errorMessage))
@@ -69,6 +69,21 @@
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Auth.Setup.PasswordStep", "AliasVault.Client");
 
+    // Cached localized strings for performance
+    private string _welcomeMessage = string.Empty;
+    private string _importantNote = string.Empty;
+    private string _securityPoint1 = string.Empty;
+    private string _securityPoint2 = string.Empty;
+    private string _securityPoint3 = string.Empty;
+    private string _masterPasswordLabel = string.Empty;
+    private string _masterPasswordPlaceholder = string.Empty;
+    private string _confirmMasterPasswordLabel = string.Empty;
+    private string _confirmMasterPasswordPlaceholder = string.Empty;
+    private string _validatingPasswordMessage = string.Empty;
+    private string _passwordValidAndStrongMessage = string.Empty;
+    private string _passwordTooShortError = string.Empty;
+    private string _passwordsMismatchError = string.Empty;
+
     /// <summary>
     /// The event callback for when the password changes.
     /// </summary>
@@ -122,6 +137,21 @@
     /// <inheritdoc />
     protected override void OnInitialized()
     {
+        // Cache localized strings for performance
+        _welcomeMessage = Localizer["WelcomeMessage"];
+        _importantNote = Localizer["ImportantNote"];
+        _securityPoint1 = Localizer["SecurityPoint1"];
+        _securityPoint2 = Localizer["SecurityPoint2"];
+        _securityPoint3 = Localizer["SecurityPoint3"];
+        _masterPasswordLabel = Localizer["MasterPasswordLabel"];
+        _masterPasswordPlaceholder = Localizer["MasterPasswordPlaceholder"];
+        _confirmMasterPasswordLabel = Localizer["ConfirmMasterPasswordLabel"];
+        _confirmMasterPasswordPlaceholder = Localizer["ConfirmMasterPasswordPlaceholder"];
+        _validatingPasswordMessage = Localizer["ValidatingPasswordMessage"];
+        _passwordValidAndStrongMessage = Localizer["PasswordValidAndStrongMessage"];
+        _passwordTooShortError = Localizer["PasswordTooShortError"];
+        _passwordsMismatchError = Localizer["PasswordsMismatchError"];
+
         _loadingTimer = new Timer(300);
         _loadingTimer.Elapsed += (sender, e) => FinishLoading();
         _loadingTimer.AutoReset = false;
@@ -177,7 +207,7 @@
             {
                 _isValidating = false;
                 _isValid = false;
-                _errorMessage = Localizer["PasswordTooShortError"];
+                _errorMessage = _passwordTooShortError;
                 await OnPasswordChange.InvokeAsync(string.Empty);
                 StateHasChanged();
                 return;
@@ -197,7 +227,7 @@
             {
                 _isValidating = false;
                 _isValid = false;
-                _errorMessage = Localizer["PasswordsMismatchError"];
+                _errorMessage = _passwordsMismatchError;
                 await OnPasswordChange.InvokeAsync(string.Empty);
                 StateHasChanged();
                 return;
diff --git a/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/TermsAndConditionsStep.razor b/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/TermsAndConditionsStep.razor
index ac3dec807..3f4e07f00 100644
--- a/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/TermsAndConditionsStep.razor
+++ b/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/TermsAndConditionsStep.razor
@@ -13,18 +13,18 @@
     <div class="@(_isLoading ? "invisible opacity-0" : "opacity-100") transition-opacity duration-300 w-full">
         <div class="bg-white dark:bg-gray-800 rounded-lg shadow-lg lg:shadow-none p-6">
             <p class="text-sm text-gray-600 dark:text-gray-400 mb-4">
-                @Localizer["PleaseReadAndAgree"]
+                @_pleaseReadAndAgree
             </p>
             <div class="bg-gray-100 dark:bg-gray-700 rounded-lg p-4 mb-8 h-80 overflow-y-auto">
-                <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-2">@Localizer["TermsAndConditionsTitle"]</h3>
+                <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-2">@_termsAndConditionsTitle</h3>
                 <p class="text-sm text-gray-600 dark:text-gray-400 whitespace-pre-line">
-                    @Localizer["TermsContent"]
+                    @_termsContent
                 </p>
             </div>
             <div class="flex items-center">
                 <input type="checkbox" id="agreeTerms" @bind="AgreedToTerms" @bind:after="OnAgreedToTerms" class="mr-2">
                 <label for="agreeTerms" class="text-sm font-bold text-gray-600 dark:text-gray-400">
-                    @Localizer["AgreementCheckboxLabel"]
+                    @_agreementCheckboxLabel
                 </label>
             </div>
         </div>
@@ -33,6 +33,12 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Auth.Setup.TermsAndConditionsStep", "AliasVault.Client");
+
+    // Cached localized strings for performance
+    private string _pleaseReadAndAgree = string.Empty;
+    private string _termsAndConditionsTitle = string.Empty;
+    private string _termsContent = string.Empty;
+    private string _agreementCheckboxLabel = string.Empty;
     /// <summary>
     /// Gets or sets a value indicating whether the user has agreed to the terms and conditions.
     /// </summary>
@@ -57,6 +63,12 @@
     /// <inheritdoc />
     protected override void OnInitialized()
     {
+        // Cache localized strings for performance
+        _pleaseReadAndAgree = Localizer["PleaseReadAndAgree"];
+        _termsAndConditionsTitle = Localizer["TermsAndConditionsTitle"];
+        _termsContent = Localizer["TermsContent"];
+        _agreementCheckboxLabel = Localizer["AgreementCheckboxLabel"];
+
         _loadingTimer = new Timer(300);
         _loadingTimer.Elapsed += (sender, e) => FinishLoading();
         _loadingTimer.AutoReset = false;
diff --git a/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/UsernameStep.razor b/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/UsernameStep.razor
index 6959ac23f..79b874447 100644
--- a/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/UsernameStep.razor
+++ b/apps/server/AliasVault.Client/Auth/Pages/Setup/Components/UsernameStep.razor
@@ -14,17 +14,17 @@
         <div class="bg-white dark:bg-gray-800 rounded-lg shadow-lg lg:shadow-none p-6 mb-6">
             <div class="flex items-start mb-4">
                 <div class="flex-shrink-0">
-                    <img class="h-10 w-10 rounded-full" src="/img/avatar.webp" alt="@Localizer["AssistantAvatarAlt"]">
+                    <img class="h-10 w-10 rounded-full" src="/img/avatar.webp" alt="@_assistantAvatarAlt">
                 </div>
                 <div class="ml-3 bg-blue-100 dark:bg-blue-900 rounded-lg p-3">
                     <p class="text-sm text-gray-900 dark:text-white">
-                        @Localizer["GreatNowLetsSetupUsername"]
+                        @_greatNowLetsSetupUsername
                     </p>
                     <p class="text-sm text-gray-900 dark:text-white mt-3">
-                        @Localizer["EnterUsernameInstructions"]
+                        @_enterUsernameInstructions
                     </p>
                     <p class="text-sm text-gray-900 dark:text-white mt-3 font-semibold">
-                        @Localizer["RememberUsernameNote"]
+                        @_rememberUsernameNote
                     </p>
                 </div>
             </div>
@@ -32,14 +32,14 @@
 
         <div class="space-y-4">
             <div>
-                <EditFormRow Id="username" Label="@Localizer["UsernameLabel"]" @bind-Value="Username" Placeholder="@Localizer["UsernamePlaceholder"]" OnFocus="@OnUsernameInputFocus" />
+                <EditFormRow Id="username" Label="@_usernameLabel" @bind-Value="Username" Placeholder="@_usernamePlaceholder" OnFocus="@OnUsernameInputFocus" />
                 @if (_isValidating)
                 {
-                    <div class="mt-2 text-sm text-gray-600 dark:text-gray-400">@Localizer["ValidatingUsernameMessage"]</div>
+                    <div class="mt-2 text-sm text-gray-600 dark:text-gray-400">@_validatingUsernameMessage</div>
                 }
                 else if (_isValid)
                 {
-                    <div class="mt-2 text-sm text-green-600 dark:text-green-400">@Localizer["UsernameAvailableMessage"]</div>
+                    <div class="mt-2 text-sm text-green-600 dark:text-green-400">@_usernameAvailableMessage</div>
                 }
                 else if (!string.IsNullOrEmpty(_errorMessage))
                 {
@@ -54,6 +54,18 @@
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Auth.Setup.UsernameStep", "AliasVault.Client");
     private IStringLocalizer ApiErrorLocalizer => LocalizerFactory.Create("ApiErrors", "AliasVault.Client");
 
+    // Cached localized strings for performance
+    private string _assistantAvatarAlt = string.Empty;
+    private string _greatNowLetsSetupUsername = string.Empty;
+    private string _enterUsernameInstructions = string.Empty;
+    private string _rememberUsernameNote = string.Empty;
+    private string _usernameLabel = string.Empty;
+    private string _usernamePlaceholder = string.Empty;
+    private string _validatingUsernameMessage = string.Empty;
+    private string _usernameAvailableMessage = string.Empty;
+    private string _usernameRequiredError = string.Empty;
+    private string _serverCommunicationError = string.Empty;
+
     /// <summary>
     /// The username that is previously entered by the user. When a user navigates with back/continue
     /// and entered a username already, the existing username might be provided by the parent component.
@@ -103,6 +115,18 @@
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings for performance
+        _assistantAvatarAlt = Localizer["AssistantAvatarAlt"];
+        _greatNowLetsSetupUsername = Localizer["GreatNowLetsSetupUsername"];
+        _enterUsernameInstructions = Localizer["EnterUsernameInstructions"];
+        _rememberUsernameNote = Localizer["RememberUsernameNote"];
+        _usernameLabel = Localizer["UsernameLabel"];
+        _usernamePlaceholder = Localizer["UsernamePlaceholder"];
+        _validatingUsernameMessage = Localizer["ValidatingUsernameMessage"];
+        _usernameAvailableMessage = Localizer["UsernameAvailableMessage"];
+        _usernameRequiredError = Localizer["UsernameRequiredError"];
+        _serverCommunicationError = Localizer["ServerCommunicationError"];
+
         // Set the default username if provided.
         _username = DefaultUsername;
 
@@ -166,7 +190,7 @@
             {
                 _isValidating = false;
                 _isValid = false;
-                _errorMessage = Localizer["UsernameRequiredError"];
+                _errorMessage = _usernameRequiredError;
                 await OnUsernameChange.InvokeAsync(string.Empty);
                 StateHasChanged();
                 return;
@@ -192,7 +216,7 @@
             }
             catch
             {
-                _errorMessage = Localizer["ServerCommunicationError"];
+                _errorMessage = _serverCommunicationError;
                 _isValid = false;
                 await OnUsernameChange.InvokeAsync(string.Empty);
             }
diff --git a/apps/server/AliasVault.Client/Auth/Pages/Unlock.razor b/apps/server/AliasVault.Client/Auth/Pages/Unlock.razor
index 11fa80ddd..5c9765639 100644
--- a/apps/server/AliasVault.Client/Auth/Pages/Unlock.razor
+++ b/apps/server/AliasVault.Client/Auth/Pages/Unlock.razor
@@ -19,7 +19,7 @@
 else if (IsWebAuthnLoading) {
     <BoldLoadingIndicator />
     <p class="mt-6 text-center font-normal text-gray-500 dark:text-gray-400">
-        @Localizer["LoggingInWithWebAuthn"]
+        @_loggingInWithWebAuthn
     </p>
 }
 else
@@ -33,15 +33,15 @@ else
     {
         <div class="mb-6">
             <p class="text-base font-normal text-gray-500 dark:text-gray-400 mb-4">
-                @Localizer["QuickUnlockDescription"]
+                @_quickUnlockDescription
             </p>
             <div class="flex space-x-4">
                 <button type="button" @onclick="UnlockWithWebAuthn" class="flex-grow inline-flex items-center justify-center px-5 py-3 text-base font-medium text-center text-white rounded-lg bg-primary-700 hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 sm:w-auto dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">
                     <svg class="w-5 h-5 mr-2 -ml-1" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M17.414 2.586a2 2 0 00-2.828 0L7 10.172V13h2.828l7.586-7.586a2 2 0 000-2.828z"></path><path fill-rule="evenodd" d="M2 6a2 2 0 012-2h4a1 1 0 010 2H4v10h10v-4a1 1 0 112 0v4a2 2 0 01-2 2H4a2 2 0 01-2-2V6z" clip-rule="evenodd"></path></svg>
-                    @Localizer["UnlockWithWebAuthn"]
+                    @_unlockWithWebAuthn
                 </button>
                 <button type="button" @onclick="ShowPasswordLogin" class="inline-flex items-center justify-center px-5 py-3 text-base font-medium text-center text-gray-900 rounded-lg border border-gray-300 hover:bg-gray-100 focus:ring-4 focus:ring-gray-100 dark:text-white dark:border-gray-700 dark:hover:bg-gray-700 dark:focus:ring-gray-800">
-                    @Localizer["UnlockWithPassword"]
+                    @_unlockWithPassword
                 </button>
             </div>
         </div>
@@ -49,26 +49,26 @@ else
     else
     {
         <p class="text-base font-normal text-gray-500 dark:text-gray-400 mb-4">
-            @Localizer["EnterMasterPasswordDescription"]
+            @_enterMasterPasswordDescription
         </p>
 
         <EditForm Model="_unlockModel" OnValidSubmit="UnlockSubmit" class="mt-8 space-y-6">
             <DataAnnotationsValidator/>
             <div>
-                <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["YourPasswordLabel"]</label>
+                <label asp-for="Input.Password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_yourPasswordLabel</label>
                 <InputTextField id="password" @bind-Value="_unlockModel.Password" type="password" placeholder="••••••••"/>
                 <ValidationMessage For="() => _unlockModel.Password"/>
             </div>
 
             <button type="submit" class="w-full inline-flex items-center justify-center px-5 py-3 text-base font-medium text-center text-white rounded-lg bg-primary-700 hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 sm:w-auto dark:bg-primary-600 dark:hover:bg-primary-700 dark:focus:ring-primary-800">
                 <svg class="w-5 h-5 mr-2 -ml-1" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M10 2a5 5 0 00-5 5v2a2 2 0 00-2 2v5a2 2 0 002 2h10a2 2 0 002-2v-5a2 2 0 00-2-2H7V7a3 3 0 015.905-.75 1 1 0 001.937-.5A5.002 5.002 0 0010 2z"></path></svg>
-                @Localizer["UnlockButton"]
+                @_unlockButton
             </button>
         </EditForm>
     }
 
     <div class="text-sm font-medium text-gray-500 dark:text-gray-400 mt-6">
-        @Localizer["SwitchAccountsText"] <a href="/user/logout" class="text-primary-700 hover:underline dark:text-primary-500">@Localizer["LogOutLink"]</a>
+        @_switchAccountsText <a href="/user/logout" class="text-primary-700 hover:underline dark:text-primary-500">@_logOutLink</a>
     </div>
 }
 
@@ -89,11 +89,47 @@ else
     private IStringLocalizer Localizer => LocalizerFactory.Create("Pages.Auth.Unlock", "AliasVault.Client");
     private IStringLocalizer ApiErrorLocalizer => LocalizerFactory.Create("ApiErrors", "AliasVault.Client");
 
+    // Cached localized strings
+    private string _loggingInWithWebAuthn = string.Empty;
+    private string _quickUnlockDescription = string.Empty;
+    private string _unlockWithWebAuthn = string.Empty;
+    private string _unlockWithPassword = string.Empty;
+    private string _enterMasterPasswordDescription = string.Empty;
+    private string _yourPasswordLabel = string.Empty;
+    private string _unlockButton = string.Empty;
+    private string _switchAccountsText = string.Empty;
+    private string _logOutLink = string.Empty;
+    private string _unlockingVaultMessage = string.Empty;
+    private string _unlockRequestError = string.Empty;
+    private string _incorrectPasswordError = string.Empty;
+    private string _genericUnlockError = string.Empty;
+    private string _sessionTimedOutError = string.Empty;
+    private string _connectionFailedError = string.Empty;
+    private string _webAuthnNotSupportedError = string.Empty;
+
     /// <inheritdoc />
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
         {
+            // Cache localized strings to prevent infinite rendering loops
+            _loggingInWithWebAuthn = Localizer["LoggingInWithWebAuthn"];
+            _quickUnlockDescription = Localizer["QuickUnlockDescription"];
+            _unlockWithWebAuthn = Localizer["UnlockWithWebAuthn"];
+            _unlockWithPassword = Localizer["UnlockWithPassword"];
+            _enterMasterPasswordDescription = Localizer["EnterMasterPasswordDescription"];
+            _yourPasswordLabel = Localizer["YourPasswordLabel"];
+            _unlockButton = Localizer["UnlockButton"];
+            _switchAccountsText = Localizer["SwitchAccountsText"];
+            _logOutLink = Localizer["LogOutLink"];
+            _unlockingVaultMessage = Localizer["UnlockingVaultMessage"];
+            _unlockRequestError = Localizer["UnlockRequestError"];
+            _incorrectPasswordError = Localizer["IncorrectPasswordError"];
+            _genericUnlockError = Localizer["GenericUnlockError"];
+            _sessionTimedOutError = Localizer["SessionTimedOutError"];
+            _connectionFailedError = Localizer["ConnectionFailedError"];
+            _webAuthnNotSupportedError = Localizer["WebAuthnNotSupportedError"];
+
             // Trigger status API call to check if the user is still authenticated.
             // If user is not authenticated a redirect to the login page will be triggered automatically.
             await StatusCheck();
@@ -117,7 +153,7 @@ else
     /// </summary>
     private async Task UnlockSubmit()
     {
-        _loadingIndicator.Show(Localizer["UnlockingVaultMessage"]);
+        _loadingIndicator.Show(_unlockingVaultMessage);
         _serverValidationErrors.Clear();
 
         try
@@ -142,7 +178,7 @@ else
             var loginResponse = JsonSerializer.Deserialize<LoginInitiateResponse>(responseContent);
             if (loginResponse == null)
             {
-                _serverValidationErrors.AddError(Localizer["UnlockRequestError"]);
+                _serverValidationErrors.AddError(_unlockRequestError);
                 return;
             }
 
@@ -154,7 +190,7 @@ else
 
             if (!validPassword)
             {
-                _serverValidationErrors.AddError(Localizer["IncorrectPasswordError"]);
+                _serverValidationErrors.AddError(_incorrectPasswordError);
                 return;
             }
 
@@ -183,7 +219,7 @@ else
         catch
         {
             // If in release mode show a generic error.
-            _serverValidationErrors.AddError(Localizer["GenericUnlockError"]);
+            _serverValidationErrors.AddError(_genericUnlockError);
         }
 #endif
         finally
@@ -202,7 +238,7 @@ else
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
         if (authState.User.Identity?.IsAuthenticated == false) {
             // Not authenticated (anymore), redirect to login page.
-            GlobalNotificationService.AddErrorMessage(Localizer["SessionTimedOutError"]);
+            GlobalNotificationService.AddErrorMessage(_sessionTimedOutError);
             NavigationManager.NavigateTo("/user/login");
             return;
         }
@@ -214,7 +250,7 @@ else
             // Clear all tokens and redirect to login page.
             await AuthService.RemoveTokensAsync();
             GlobalNotificationService.ClearMessages();
-            GlobalNotificationService.AddErrorMessage(Localizer["SessionTimedOutError"]);
+            GlobalNotificationService.AddErrorMessage(_sessionTimedOutError);
             NavigationManager.NavigateTo("/user/login");
             return;
         }
@@ -228,7 +264,7 @@ else
             await AuthService.RemoveTokensAsync();
             await AuthStateProvider.GetAuthenticationStateAsync();
             GlobalNotificationService.ClearMessages();
-            GlobalNotificationService.AddErrorMessage(Localizer["SessionTimedOutError"]);
+            GlobalNotificationService.AddErrorMessage(_sessionTimedOutError);
             NavigationManager.NavigateTo("/user/login");
             return;
         }
@@ -241,7 +277,7 @@ else
         }
         catch (Exception ex)
         {
-            _serverValidationErrors.AddError(Localizer["ConnectionFailedError"]);
+            _serverValidationErrors.AddError(_connectionFailedError);
             Logger.LogError(ex, "An error occurred while checking the user status.");
             StateHasChanged();
         }
@@ -284,7 +320,7 @@ else
             }
             catch (NotSupportedException)
             {
-                GlobalNotificationService.AddErrorMessage(Localizer["WebAuthnNotSupportedError"], true);
+                GlobalNotificationService.AddErrorMessage(_webAuthnNotSupportedError, true);
             }
             catch (Exception ex)
             {
diff --git a/apps/server/AliasVault.Client/Main/Components/Email/EmailModal.razor b/apps/server/AliasVault.Client/Main/Components/Email/EmailModal.razor
index 1b23a2f8c..f6ffdd8dd 100644
--- a/apps/server/AliasVault.Client/Main/Components/Email/EmailModal.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Email/EmailModal.razor
@@ -37,12 +37,12 @@
                 <!-- 2-column layout for email details -->
                 <div class="grid grid-cols-1 sm:grid-cols-2 gap-4 text-sm text-gray-500 dark:text-gray-400">
                     <div class="space-y-1">
-                        <p>@Localizer["FromLabel"] @(Email?.FromLocal)@@@(Email?.FromDomain)</p>
-                        <p>@Localizer["ToLabel"] @(Email?.ToLocal)@@@(Email?.ToDomain)</p>
+                        <p>@_fromLabel @(Email?.FromLocal)@@@(Email?.FromDomain)</p>
+                        <p>@_toLabel @(Email?.ToLocal)@@@(Email?.ToDomain)</p>
                     </div>
                     <div class="space-y-1">
-                        <p>@Localizer["DateLabel"] @Email?.DateSystem</p>
-                        <p>@Localizer["ActionsLabel"] <button @onclick="ShowDeleteConfirmation" class="text-red-500 hover:text-red-700 text-sm">@Localizer["DeleteButton"]</button></p>
+                        <p>@_dateLabel @Email?.DateSystem</p>
+                        <p>@_actionsLabel <button @onclick="ShowDeleteConfirmation" class="text-red-500 hover:text-red-700 text-sm">@_deleteButton</button></p>
                     </div>
                 </div>
             </div>
@@ -59,7 +59,7 @@
                     @if (Email?.Attachments?.Any() == true)
                     {
                         <div class="border-t border-gray-200 dark:border-gray-600 pt-4">
-                            <h3 class="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">@Localizer["AttachmentsLabel"]</h3>
+                            <h3 class="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">@_attachmentsLabel</h3>
                             <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 gap-4">
                                 @foreach (var attachment in Email.Attachments)
                                 {
@@ -78,7 +78,7 @@
                     }
                 </div>
                 <div class="mt-6 flex justify-end space-x-4">
-                    <button id="close-email-modal" @onclick="Close" class="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600">@Localizer["CloseButton"]</button>
+                    <button id="close-email-modal" @onclick="Close" class="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600">@_closeButton</button>
                 </div>
             </div>
         </div>
@@ -87,6 +87,23 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Email.EmailModal", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _fromLabel = "";
+    private string _toLabel = "";
+    private string _dateLabel = "";
+    private string _actionsLabel = "";
+    private string _deleteButton = "";
+    private string _attachmentsLabel = "";
+    private string _closeButton = "";
+    private string _deleteEmailTitle = "";
+    private string _deleteEmailConfirmation = "";
+    private string _emailDeletedSuccess = "";
+    private string _emailDeleteFailed = "";
+    private string _genericError = "";
+    private string _noEmailBody = "";
+    private string _attachmentDownloadFailed = "";
+    private string _attachmentDownloadError = "";
 
     /// <summary>
     /// The email to show in the modal.
@@ -128,8 +145,8 @@
         }
 
         var result = await ConfirmModalService.ShowConfirmation(
-            Localizer["DeleteEmailTitle"],
-            Localizer["DeleteEmailConfirmation"]
+            _deleteEmailTitle,
+            _deleteEmailConfirmation
         );
 
         if (result)
@@ -189,18 +206,18 @@
             if (response.IsSuccessStatusCode)
             {
                 await OnEmailDeleted.InvokeAsync(Email.Id);
-                GlobalNotificationService.AddSuccessMessage(Localizer["EmailDeletedSuccess"], true);
+                GlobalNotificationService.AddSuccessMessage(_emailDeletedSuccess, true);
                 await Close();
             }
             else
             {
                 var errorMessage = await response.Content.ReadAsStringAsync();
-                GlobalNotificationService.AddErrorMessage($"{Localizer["EmailDeleteFailed"]}: {errorMessage}", true);
+                GlobalNotificationService.AddErrorMessage($"{_emailDeleteFailed}: {errorMessage}", true);
             }
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage($"{Localizer["GenericError"]}: {ex.Message}", true);
+            GlobalNotificationService.AddErrorMessage($"{_genericError}: {ex.Message}", true);
         }
     }
 
@@ -220,22 +237,39 @@
             if (response.IsSuccessStatusCode)
             {
                 await OnEmailDeleted.InvokeAsync(Email.Id);
-                GlobalNotificationService.AddSuccessMessage(Localizer["EmailDeletedSuccess"], true);
+                GlobalNotificationService.AddSuccessMessage(_emailDeletedSuccess, true);
             }
             else
             {
-                GlobalNotificationService.AddErrorMessage(Localizer["EmailDeleteFailed"], true);
+                GlobalNotificationService.AddErrorMessage(_emailDeleteFailed, true);
             }
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage($"{Localizer["EmailDeleteFailed"]}: {ex.Message}", true);
+            GlobalNotificationService.AddErrorMessage($"{_emailDeleteFailed}: {ex.Message}", true);
         }
     }
 
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings
+        _fromLabel = Localizer["FromLabel"];
+        _toLabel = Localizer["ToLabel"];
+        _dateLabel = Localizer["DateLabel"];
+        _actionsLabel = Localizer["ActionsLabel"];
+        _deleteButton = Localizer["DeleteButton"];
+        _attachmentsLabel = Localizer["AttachmentsLabel"];
+        _closeButton = Localizer["CloseButton"];
+        _deleteEmailTitle = Localizer["DeleteEmailTitle"];
+        _deleteEmailConfirmation = Localizer["DeleteEmailConfirmation"];
+        _emailDeletedSuccess = Localizer["EmailDeletedSuccess"];
+        _emailDeleteFailed = Localizer["EmailDeleteFailed"];
+        _genericError = Localizer["GenericError"];
+        _noEmailBody = Localizer["NoEmailBody"];
+        _attachmentDownloadFailed = Localizer["AttachmentDownloadFailed"];
+        _attachmentDownloadError = Localizer["AttachmentDownloadError"];
+        
         await base.OnInitializedAsync();
 
         // Determine email body
@@ -255,7 +289,7 @@
             else
             {
                 // No HTML and no plain text available
-                EmailBody = Localizer["NoEmailBody"];
+                EmailBody = _noEmailBody;
             }
         }
     }
@@ -282,7 +316,7 @@
                 }
                 else
                 {
-                    GlobalNotificationService.AddErrorMessage(Localizer["AttachmentDownloadFailed"], true);
+                    GlobalNotificationService.AddErrorMessage(_attachmentDownloadFailed, true);
                 }
             }
             else
@@ -305,13 +339,13 @@
                 }
                 else
                 {
-                    GlobalNotificationService.AddErrorMessage(Localizer["AttachmentDownloadFailed"], true);
+                    GlobalNotificationService.AddErrorMessage(_attachmentDownloadFailed, true);
                 }
             }
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage($"{Localizer["AttachmentDownloadError"]}: {ex.Message}", true);
+            GlobalNotificationService.AddErrorMessage($"{_attachmentDownloadError}: {ex.Message}", true);
         }
     }
 }
diff --git a/apps/server/AliasVault.Client/Main/Components/Email/EmailPreview.razor b/apps/server/AliasVault.Client/Main/Components/Email/EmailPreview.razor
index 2f4b5b262..235fa5a6e 100644
--- a/apps/server/AliasVault.Client/Main/Components/Email/EmailPreview.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Email/EmailPreview.razor
@@ -37,14 +37,14 @@
             <!-- 2-column layout for email details -->
             <div class="grid grid-cols-1 sm:grid-cols-2 gap-4 text-sm text-gray-600 dark:text-gray-300">
                 <div class="space-y-1">
-                    <p><span class="font-medium">@Localizer["FromLabel"]</span> @(Email.FromLocal)@@@(Email.FromDomain)</p>
-                    <p><span class="font-medium">@Localizer["ToLabel"]</span> @(Email.ToLocal)@@@(Email.ToDomain)</p>
+                    <p><span class="font-medium">@_fromLabel</span> @(Email.FromLocal)@@@(Email.FromDomain)</p>
+                    <p><span class="font-medium">@_toLabel</span> @(Email.ToLocal)@@@(Email.ToDomain)</p>
                 </div>
                 <div class="space-y-1">
-                    <p><span class="font-medium">@Localizer["DateLabel"]</span> @Email.DateSystem</p>
+                    <p><span class="font-medium">@_dateLabel</span> @Email.DateSystem</p>
                     @if (!string.IsNullOrEmpty(CredentialName) && CredentialId != Guid.Empty)
                     {
-                        <p><span class="font-medium">@Localizer["CredentialLabel"]</span>
+                        <p><span class="font-medium">@_credentialLabel</span>
                             <button @onclick="@(() => OnCredentialClick.InvokeAsync(CredentialId))"
                                     class="text-blue-600 hover:underline dark:text-blue-400 cursor-pointer">
                                 @CredentialName
@@ -53,7 +53,7 @@
                     }
                     else
                     {
-                        <p><span class="font-medium">@Localizer["CredentialLabel"]</span> <span class="text-gray-400 dark:text-gray-500">@Localizer["NoneValue"]</span></p>
+                        <p><span class="font-medium">@_credentialLabel</span> <span class="text-gray-400 dark:text-gray-500">@_noneValue</span></p>
                     }
                 </div>
             </div>
@@ -73,7 +73,7 @@
             {
                 <!-- Attachments Section - Fixed height -->
                 <div class="border-t border-gray-200 dark:border-gray-600 p-4 bg-gray-50 dark:bg-gray-800">
-                    <h3 class="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">@Localizer["AttachmentsLabel"]</h3>
+                    <h3 class="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">@_attachmentsLabel</h3>
                     <div class="grid grid-cols-1 gap-2 max-h-32 overflow-y-auto">
                         @foreach (var attachment in Email.Attachments)
                         {
@@ -99,7 +99,7 @@
                 <svg class="mx-auto h-12 w-12 text-gray-300 dark:text-gray-600" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 8l7.89 4.26a2 2 0 002.22 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/>
                 </svg>
-                <p class="mt-2 text-sm">@Localizer["SelectEmailMessage"]</p>
+                <p class="mt-2 text-sm">@_selectEmailMessage</p>
             </div>
         </div>
     }
@@ -107,6 +107,23 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Email.EmailPreview", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _fromLabel = "";
+    private string _toLabel = "";
+    private string _dateLabel = "";
+    private string _credentialLabel = "";
+    private string _noneValue = "";
+    private string _attachmentsLabel = "";
+    private string _selectEmailMessage = "";
+    private string _deleteEmailTitle = "";
+    private string _deleteEmailConfirmation = "";
+    private string _emailDeletedSuccess = "";
+    private string _emailDeleteFailed = "";
+    private string _genericError = "";
+    private string _noEmailBody = "";
+    private string _attachmentDownloadFailed = "";
+    private string _attachmentDownloadError = "";
     /// <summary>
     /// The email to show in the preview.
     /// </summary>
@@ -159,8 +176,8 @@
         }
 
         var result = await ConfirmModalService.ShowConfirmation(
-            Localizer["DeleteEmailTitle"],
-            Localizer["DeleteEmailConfirmation"]
+            _deleteEmailTitle,
+            _deleteEmailConfirmation
         );
 
         if (result)
@@ -211,17 +228,17 @@
             if (response.IsSuccessStatusCode)
             {
                 await OnEmailDeleted.InvokeAsync(Email.Id);
-                GlobalNotificationService.AddSuccessMessage(Localizer["EmailDeletedSuccess"], true);
+                GlobalNotificationService.AddSuccessMessage(_emailDeletedSuccess, true);
             }
             else
             {
                 var errorMessage = await response.Content.ReadAsStringAsync();
-                GlobalNotificationService.AddErrorMessage($"{Localizer["EmailDeleteFailed"]}: {errorMessage}", true);
+                GlobalNotificationService.AddErrorMessage($"{_emailDeleteFailed}: {errorMessage}", true);
             }
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage($"{Localizer["GenericError"]}: {ex.Message}", true);
+            GlobalNotificationService.AddErrorMessage($"{_genericError}: {ex.Message}", true);
         }
     }
 
@@ -241,19 +258,41 @@
             if (response.IsSuccessStatusCode)
             {
                 await OnEmailDeleted.InvokeAsync(Email.Id);
-                GlobalNotificationService.AddSuccessMessage(Localizer["EmailDeletedSuccess"], true);
+                GlobalNotificationService.AddSuccessMessage(_emailDeletedSuccess, true);
             }
             else
             {
-                GlobalNotificationService.AddErrorMessage(Localizer["EmailDeleteFailed"], true);
+                GlobalNotificationService.AddErrorMessage(_emailDeleteFailed, true);
             }
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage($"{Localizer["EmailDeleteFailed"]}: {ex.Message}", true);
+            GlobalNotificationService.AddErrorMessage($"{_emailDeleteFailed}: {ex.Message}", true);
         }
     }
 
+    protected override async Task OnInitializedAsync()
+    {
+        // Cache localized strings
+        _fromLabel = Localizer["FromLabel"];
+        _toLabel = Localizer["ToLabel"];
+        _dateLabel = Localizer["DateLabel"];
+        _credentialLabel = Localizer["CredentialLabel"];
+        _noneValue = Localizer["NoneValue"];
+        _attachmentsLabel = Localizer["AttachmentsLabel"];
+        _selectEmailMessage = Localizer["SelectEmailMessage"];
+        _deleteEmailTitle = Localizer["DeleteEmailTitle"];
+        _deleteEmailConfirmation = Localizer["DeleteEmailConfirmation"];
+        _emailDeletedSuccess = Localizer["EmailDeletedSuccess"];
+        _emailDeleteFailed = Localizer["EmailDeleteFailed"];
+        _genericError = Localizer["GenericError"];
+        _noEmailBody = Localizer["NoEmailBody"];
+        _attachmentDownloadFailed = Localizer["AttachmentDownloadFailed"];
+        _attachmentDownloadError = Localizer["AttachmentDownloadError"];
+        
+        await base.OnInitializedAsync();
+    }
+
     /// <inheritdoc />
     protected override async Task OnParametersSetAsync()
     {
@@ -275,7 +314,7 @@
             else
             {
                 // No HTML and no plain text available
-                EmailBody = Localizer["NoEmailBody"];
+                EmailBody = _noEmailBody;
             }
         }
     }
@@ -302,7 +341,7 @@
                 }
                 else
                 {
-                    GlobalNotificationService.AddErrorMessage(Localizer["AttachmentDownloadFailed"], true);
+                    GlobalNotificationService.AddErrorMessage(_attachmentDownloadFailed, true);
                 }
             }
             else
@@ -325,13 +364,13 @@
                 }
                 else
                 {
-                    GlobalNotificationService.AddErrorMessage(Localizer["AttachmentDownloadFailed"], true);
+                    GlobalNotificationService.AddErrorMessage(_attachmentDownloadFailed, true);
                 }
             }
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage($"{Localizer["AttachmentDownloadError"]}: {ex.Message}", true);
+            GlobalNotificationService.AddErrorMessage($"{_attachmentDownloadError}: {ex.Message}", true);
         }
     }
 }
diff --git a/apps/server/AliasVault.Client/Main/Components/Email/EmailRow.razor b/apps/server/AliasVault.Client/Main/Components/Email/EmailRow.razor
index 27dd3261e..3081fccf4 100644
--- a/apps/server/AliasVault.Client/Main/Components/Email/EmailRow.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Email/EmailRow.razor
@@ -21,7 +21,7 @@
                         }
                         @if (IsNewEmail)
                         {
-                            <div class="w-2 h-2 ml-1 bg-yellow-500 rounded-full animate-pulse flex-shrink-0" title="@Localizer["NewEmailTooltip"]"></div>
+                            <div class="w-2 h-2 ml-1 bg-yellow-500 rounded-full animate-pulse flex-shrink-0" title="@_newEmailTooltip"></div>
                         }
                     </div>
                     <!-- Subject (smaller, below from) -->
@@ -44,6 +44,10 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Email.EmailRow", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _newEmailTooltip = "";
+    
     /// <summary>
     /// The email model.
     /// </summary>
@@ -68,4 +72,12 @@
     /// </summary>
     [Parameter]
     public bool IsNewEmail { get; set; }
+
+    protected override async Task OnInitializedAsync()
+    {
+        // Cache localized strings
+        _newEmailTooltip = Localizer["NewEmailTooltip"];
+        
+        await base.OnInitializedAsync();
+    }
 }
diff --git a/apps/server/AliasVault.Client/Main/Components/Email/RecentEmails.razor b/apps/server/AliasVault.Client/Main/Components/Email/RecentEmails.razor
index 72919a401..044df74ab 100644
--- a/apps/server/AliasVault.Client/Main/Components/Email/RecentEmails.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Email/RecentEmails.razor
@@ -26,12 +26,12 @@
     <div class="p-4 mb-4 bg-white border border-gray-200 rounded-lg shadow-sm 2xl:col-span-2 dark:border-gray-700 sm:p-6 dark:bg-gray-800">
         <div class="flex justify-between">
             <div>
-                <h3 class="mb-4 text-xl font-semibold dark:text-white">@Localizer["EmailSectionTitle"]</h3>
+                <h3 class="mb-4 text-xl font-semibold dark:text-white">@_emailSectionTitle</h3>
             </div>
             <div class="flex justify-end items-center space-x-2">
                 @if (DbService.Settings.AutoEmailRefresh)
                 {
-                    <div class="w-3 h-3 mr-2 rounded-full bg-primary-300 border-2 border-primary-100 animate-pulse" title="@Localizer["AutoRefreshEnabledTooltip"]"></div>
+                    <div class="w-3 h-3 mr-2 rounded-full bg-primary-300 border-2 border-primary-100 animate-pulse" title="@_autoRefreshEnabledTooltip"></div>
                 }
                 <button id="recent-email-refresh" @onclick="ManualRefresh" type="button" class="text-blue-700 border border-blue-700 hover:bg-blue-700 hover:text-white focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-full text-sm p-2 text-center inline-flex items-center dark:border-blue-500 dark:text-blue-500 dark:hover:text-white dark:focus:ring-blue-800 dark:hover:bg-blue-500">
                     <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2.5" stroke="currentColor">
@@ -51,10 +51,10 @@
                                 <thead class="bg-gray-50 dark:bg-gray-700">
                                     <tr>
                                         <th scope="col" class="p-4 text-xs font-medium tracking-wider text-left text-gray-500 uppercase dark:text-white">
-                                            @Localizer["SubjectColumn"]
+                                            @_subjectColumn
                                         </th>
                                         <th scope="col" class="p-4 text-xs font-medium tracking-wider text-left text-gray-500 uppercase dark:text-white">
-                                            @Localizer["DateColumn"]
+                                            @_dateColumn
                                         </th>
                                     </tr>
                                 </thead>
@@ -87,7 +87,7 @@
         }
         else if (MailboxEmails.Count == 0)
         {
-            <div class="text-gray-500 dark:text-gray-400">@Localizer["NoEmailsReceivedMessage"]</div>
+            <div class="text-gray-500 dark:text-gray-400">@_noEmailsReceivedMessage</div>
         }
         else
         {
@@ -99,10 +99,10 @@
                                 <thead class="bg-gray-50 dark:bg-gray-700">
                                     <tr>
                                         <th scope="col" class="p-4 text-xs font-medium tracking-wider text-left text-gray-500 uppercase dark:text-white">
-                                            @Localizer["SubjectColumn"]
+                                            @_subjectColumn
                                         </th>
                                         <th scope="col" class="p-4 text-xs font-medium tracking-wider text-left text-gray-500 uppercase dark:text-white">
-                                            @Localizer["DateColumn"]
+                                            @_dateColumn
                                         </th>
                                     </tr>
                                 </thead>
@@ -150,6 +150,15 @@
     private bool IsLoading => LoadingService.IsLoading("recentemails");
     private bool IsSpamOk { get; set; } = false;
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Email.RecentEmails", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _emailSectionTitle = "";
+    private string _autoRefreshEnabledTooltip = "";
+    private string _subjectColumn = "";
+    private string _dateColumn = "";
+    private string _noEmailsReceivedMessage = "";
+    private string _emailAddressInUseError = "";
+    private string _emailLoadError = "";
 
     private const int ACTIVE_TAB_REFRESH_INTERVAL = 2000; // 2 seconds
     private CancellationTokenSource? _pollingCts;
@@ -229,6 +238,15 @@
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings
+        _emailSectionTitle = Localizer["EmailSectionTitle"];
+        _autoRefreshEnabledTooltip = Localizer["AutoRefreshEnabledTooltip"];
+        _subjectColumn = Localizer["SubjectColumn"];
+        _dateColumn = Localizer["DateColumn"];
+        _noEmailsReceivedMessage = Localizer["NoEmailsReceivedMessage"];
+        _emailAddressInUseError = Localizer["EmailAddressInUseError"];
+        _emailLoadError = Localizer["EmailLoadError"];
+        
         await base.OnInitializedAsync();
 
         if (EmailAddress is null)
@@ -430,10 +448,10 @@
                             switch (errorResponse.Code)
                             {
                                 case "CLAIM_DOES_NOT_MATCH_USER":
-                                    Error = Localizer["EmailAddressInUseError"];
+                                    Error = _emailAddressInUseError;
                                     break;
                                 case "CLAIM_DOES_NOT_EXIST":
-                                    Error = Localizer["EmailLoadError"];
+                                    Error = _emailLoadError;
                                     break;
                                 default:
                                     throw new ArgumentException(errorResponse.Message);
diff --git a/apps/server/AliasVault.Client/Main/Components/Forms/CopyPasteFormRow.razor b/apps/server/AliasVault.Client/Main/Components/Forms/CopyPasteFormRow.razor
index 77a9a0b19..e9d8c1aef 100644
--- a/apps/server/AliasVault.Client/Main/Components/Forms/CopyPasteFormRow.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Forms/CopyPasteFormRow.razor
@@ -14,13 +14,16 @@
     @if (Copied)
     {
         <span class="absolute inset-y-0 right-0 flex items-center pr-3 text-green-500 dark:text-green-400">
-            @Localizer["CopiedMessage"]
+            @_copiedMessage
         </span>
     }
 </div>
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Forms.CopyPasteFormRow", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _copiedMessage = "";
 
     /// <summary>
     /// Id for the input field. Defaults to a random GUID if not provided.
@@ -45,6 +48,9 @@
     /// <inheritdoc />
     protected override void OnInitialized()
     {
+        // Cache localized strings
+        _copiedMessage = Localizer["CopiedMessage"];
+        
         ClipboardCopyService.OnCopy += HandleCopy;
     }
 
diff --git a/apps/server/AliasVault.Client/Main/Components/Forms/EditEmailFormRow.razor b/apps/server/AliasVault.Client/Main/Components/Forms/EditEmailFormRow.razor
index 2cee6699b..bd036f402 100644
--- a/apps/server/AliasVault.Client/Main/Components/Forms/EditEmailFormRow.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Forms/EditEmailFormRow.razor
@@ -20,13 +20,13 @@
     @if (IsCustomDomain)
     {
         <button type="button" class="text-sm text-blue-600 hover:text-blue-800 dark:text-blue-400 dark:hover:text-blue-200" @onclick="TogglePopup">
-            @Localizer["UseDomainChooserButton"]
+            @_useDomainChooserButton
         </button>
     }
     else
     {
         <button type="button" class="text-sm text-blue-600 hover:text-blue-800 dark:text-blue-400 dark:hover:text-blue-200" @onclick="ToggleCustomDomain">
-            @Localizer["EnterCustomDomainButton"]
+            @_enterCustomDomainButton
         </button>
     }
 </div>
@@ -36,13 +36,13 @@
     <div class="fixed inset-0 bg-gray-600 bg-opacity-50 z-30 overflow-y-auto h-full w-full" @onclick="ClosePopup">
         <div class="relative top-20 mx-auto p-5 border w-96 shadow-lg rounded-md bg-white dark:bg-gray-800" @onclick:stopPropagation>
             <div class="mt-3 text-center">
-                <h3 class="text-lg leading-6 font-medium text-gray-900 dark:text-white">@Localizer["SelectEmailDomainTitle"]</h3>
+                <h3 class="text-lg leading-6 font-medium text-gray-900 dark:text-white">@_selectEmailDomainTitle</h3>
                 <div class="mt-2 px-7 py-3">
                     @if (ShowPrivateDomains)
                     {
                         <div class="mb-4">
-                            <h4 class="text-md font-semibold text-gray-700 dark:text-gray-300">@Localizer["PrivateEmailTitle"]</h4>
-                            <p class="text-sm text-gray-500 dark:text-gray-400">@Localizer["PrivateEmailDescription"]</p>
+                            <h4 class="text-md font-semibold text-gray-700 dark:text-gray-300">@_privateEmailTitle</h4>
+                            <p class="text-sm text-gray-500 dark:text-gray-400">@_privateEmailDescription</p>
                             @foreach (var domain in PrivateDomains)
                             {
                                 <button class="mt-2 px-4 py-2 bg-primary-300 text-gray-700 rounded hover:bg-primary-400 focus:outline-none focus:ring-2 focus:ring-gray-400 mr-2" @onclick="() => SelectDomain(domain)">
@@ -52,8 +52,8 @@
                         </div>
                     }
                     <div class="@(ShowPrivateDomains ? "border-t border-gray-200 dark:border-gray-600 pt-4" : "")">
-                        <h4 class="text-md font-semibold text-gray-700 dark:text-gray-300">@Localizer["PublicEmailTitle"]</h4>
-                        <p class="text-sm text-gray-500 dark:text-gray-400">@Localizer["PublicEmailDescription"]</p>
+                        <h4 class="text-md font-semibold text-gray-700 dark:text-gray-300">@_publicEmailTitle</h4>
+                        <p class="text-sm text-gray-500 dark:text-gray-400">@_publicEmailDescription</p>
                         @foreach (var domain in PublicDomains)
                         {
                             <button class="mt-2 px-4 py-2 bg-gray-200 text-gray-700 rounded hover:bg-gray-300 focus:outline-none focus:ring-2 focus:ring-gray-400 mr-2" @onclick="() => SelectDomain(domain)">
@@ -81,6 +81,15 @@
     public string Label { get; set; } = "Email Address";
 
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Forms.EditEmailFormRow", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _useDomainChooserButton = "";
+    private string _enterCustomDomainButton = "";
+    private string _selectEmailDomainTitle = "";
+    private string _privateEmailTitle = "";
+    private string _privateEmailDescription = "";
+    private string _publicEmailTitle = "";
+    private string _publicEmailDescription = "";
 
     /// <summary>
     /// The value of the input field. This should be the full email address.
@@ -107,6 +116,15 @@
     /// <inheritdoc />
     protected override void OnInitialized()
     {
+        // Cache localized strings
+        _useDomainChooserButton = Localizer["UseDomainChooserButton"];
+        _enterCustomDomainButton = Localizer["EnterCustomDomainButton"];
+        _selectEmailDomainTitle = Localizer["SelectEmailDomainTitle"];
+        _privateEmailTitle = Localizer["PrivateEmailTitle"];
+        _privateEmailDescription = Localizer["PrivateEmailDescription"];
+        _publicEmailTitle = Localizer["PublicEmailTitle"];
+        _publicEmailDescription = Localizer["PublicEmailDescription"];
+        
         base.OnInitialized();
 
         IsCustomDomain = !PublicDomains.Contains(SelectedDomain) && !PrivateDomains.Contains(SelectedDomain);
diff --git a/apps/server/AliasVault.Client/Main/Components/Settings/DefaultPasswordSettings.razor b/apps/server/AliasVault.Client/Main/Components/Settings/DefaultPasswordSettings.razor
index 1c625038f..b5f46e8f3 100644
--- a/apps/server/AliasVault.Client/Main/Components/Settings/DefaultPasswordSettings.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Settings/DefaultPasswordSettings.razor
@@ -3,12 +3,12 @@
 @using Microsoft.Extensions.Localization
 
 <div class="mb-4">
-    <label for="password-generator-settings-modal" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["PasswordGeneratorSettingsLabel"]</label>
+    <label for="password-generator-settings-modal" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_passwordGeneratorSettingsLabel</label>
     <button type="button" id="password-generator-settings-modal" class="px-4 py-2 bg-primary-600 text-white rounded-md hover:bg-primary-700 focus:outline-none focus:ring-2 focus:ring-primary-500 dark:bg-primary-700 dark:hover:bg-primary-600" @onclick="OpenSettings">
-        @Localizer["ConfigureButton"]
+        @_configureButton
     </button>
     <span class="block text-sm font-normal text-gray-500 truncate dark:text-gray-400 mt-2">
-        @Localizer["PasswordGeneratorSettingsDescription"]
+        @_passwordGeneratorSettingsDescription
     </span>
 </div>
 
@@ -23,6 +23,11 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Settings.DefaultPasswordSettings", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _passwordGeneratorSettingsLabel = "";
+    private string _configureButton = "";
+    private string _passwordGeneratorSettingsDescription = "";
 
     private PasswordSettings PasswordSettings { get; set; } = new();
     private bool IsSettingsVisible { get; set; }
@@ -30,6 +35,11 @@
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings
+        _passwordGeneratorSettingsLabel = Localizer["PasswordGeneratorSettingsLabel"];
+        _configureButton = Localizer["ConfigureButton"];
+        _passwordGeneratorSettingsDescription = Localizer["PasswordGeneratorSettingsDescription"];
+        
         await base.OnInitializedAsync();
         PasswordSettings = DbService.Settings.PasswordSettings;
     }
diff --git a/apps/server/AliasVault.Client/Main/Components/Settings/PasswordSettingsPopup.razor b/apps/server/AliasVault.Client/Main/Components/Settings/PasswordSettingsPopup.razor
index 2de8d6601..730bfaa22 100644
--- a/apps/server/AliasVault.Client/Main/Components/Settings/PasswordSettingsPopup.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Settings/PasswordSettingsPopup.razor
@@ -10,10 +10,10 @@
     <ModalWrapper OnEnter="HandleEnterKey">
         <div id="passwordSettingsModal" class="relative top-20 mx-auto p-5 shadow-lg rounded-md bg-white dark:bg-gray-800 border-2 border-gray-300 dark:border-gray-400">
             <div class="m-2">
-                <h3 class="text-lg leading-6 font-medium text-gray-900 dark:text-white">@Localizer["Title"]</h3>
+                <h3 class="text-lg leading-6 font-medium text-gray-900 dark:text-white">@_title</h3>
                 <div class="mt-4 space-y-4">
                     <div>
-                        <label for="password-length" class="block text-sm font-medium text-gray-700 dark:text-gray-300">@string.Format(Localizer["PasswordLengthLabel"], _workingSettings.Length)</label>
+                        <label for="password-length" class="block text-sm font-medium text-gray-700 dark:text-gray-300">@string.Format(_passwordLengthLabel, _workingSettings.Length)</label>
                         <input type="range" id="password-length" min="8" max="64"
                             class="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-primary-500 focus:ring-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:text-white"
                             @bind="_workingSettings.Length" @oninput="HandleLengthInput">
@@ -22,35 +22,35 @@
                     <div class="flex items-center">
                         <input id="use-lowercase" type="checkbox" class="h-4 w-4 text-primary-600 focus:ring-primary-500 border-gray-300 rounded dark:bg-gray-700 dark:border-gray-600"
                             @bind="_workingSettings.UseLowercase" @bind:after="OnPasswordSettingsChanged">
-                        <label for="use-lowercase" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@Localizer["IncludeLowercaseLabel"]</label>
+                        <label for="use-lowercase" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@_includeLowercaseLabel</label>
                     </div>
 
                     <div class="flex items-center">
                         <input id="use-uppercase" type="checkbox" class="h-4 w-4 text-primary-600 focus:ring-primary-500 border-gray-300 rounded dark:bg-gray-700 dark:border-gray-600"
                             @bind="_workingSettings.UseUppercase" @bind:after="OnPasswordSettingsChanged">
-                        <label for="use-uppercase" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@Localizer["IncludeUppercaseLabel"]</label>
+                        <label for="use-uppercase" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@_includeUppercaseLabel</label>
                     </div>
 
                     <div class="flex items-center">
                         <input id="use-numbers" type="checkbox" class="h-4 w-4 text-primary-600 focus:ring-primary-500 border-gray-300 rounded dark:bg-gray-700 dark:border-gray-600"
                             @bind="_workingSettings.UseNumbers" @bind:after="OnPasswordSettingsChanged">
-                        <label for="use-numbers" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@Localizer["IncludeNumbersLabel"]</label>
+                        <label for="use-numbers" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@_includeNumbersLabel</label>
                     </div>
 
                     <div class="flex items-center">
                         <input id="use-special-chars" type="checkbox" class="h-4 w-4 text-primary-600 focus:ring-primary-500 border-gray-300 rounded dark:bg-gray-700 dark:border-gray-600"
                             @bind="_workingSettings.UseSpecialChars" @bind:after="OnPasswordSettingsChanged">
-                        <label for="use-special-chars" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@Localizer["IncludeSpecialCharsLabel"]</label>
+                        <label for="use-special-chars" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@_includeSpecialCharsLabel</label>
                     </div>
 
                     <div class="flex items-center">
                         <input id="use-non-ambiguous" type="checkbox" class="h-4 w-4 text-primary-600 focus:ring-primary-500 border-gray-300 rounded dark:bg-gray-700 dark:border-gray-600"
                             @bind="_workingSettings.UseNonAmbiguousChars" @bind:after="OnPasswordSettingsChanged">
-                        <label for="use-non-ambiguous" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@Localizer["AvoidAmbiguousCharsLabel"]</label>
+                        <label for="use-non-ambiguous" class="ml-2 block text-sm text-gray-700 dark:text-gray-300">@_avoidAmbiguousCharsLabel</label>
                     </div>
 
                     <div class="mt-4">
-                        <label class="block text-sm font-medium text-gray-700 dark:text-gray-300">@Localizer["PreviewLabel"]</label>
+                        <label class="block text-sm font-medium text-gray-700 dark:text-gray-300">@_previewLabel</label>
                         <div class="mt-1 flex">
                             <CopyPasteFormRow Id="preview-password" Value="@_previewPassword" />
                             <button type="button" class="ml-2 px-3 py-2 text-sm text-gray-500 dark:text-white bg-gray-200 hover:bg-gray-300 focus:ring-4 focus:outline-none focus:ring-gray-300 font-medium rounded-md dark:bg-gray-600 dark:hover:bg-gray-700 dark:focus:ring-gray-800" @onclick="RefreshPreview">
@@ -63,16 +63,16 @@
 
                     <div class="flex @(IsTemporary ? "justify-between" : "justify-end") pt-4 gap-2">
                         <button type="button" class="px-4 py-2 bg-gray-200 text-gray-800 rounded-md hover:bg-gray-300 focus:outline-none focus:ring-2 focus:ring-gray-400 dark:bg-gray-700 dark:text-white dark:hover:bg-gray-600" @onclick="OnClose">
-                            @Localizer["CancelButton"]
+                            @_cancelButton
                         </button>
                         @if (IsTemporary)
                         {
                             <button type="button" class="px-4 py-2 bg-gray-200 text-gray-800 dark:bg-gray-700 dark:text-white rounded-md hover:bg-gray-300 dark:hover:bg-gray-600 focus:outline-none focus:ring-2 focus:ring-gray-500" @onclick="OnSaveTemporary">
-                                @Localizer["UseJustOnceButton"]
+                                @_useJustOnceButton
                             </button>
                         }
                         <button type="button" id="save-button" class="px-4 py-2 bg-primary-600 text-white rounded-md hover:bg-primary-700 focus:outline-none focus:ring-2 focus:ring-primary-500 dark:bg-primary-700 dark:hover:bg-primary-600" @onclick="OnSaveGlobal">
-                            @Localizer["SaveGloballyButton"]
+                            @_saveGloballyButton
                         </button>
                     </div>
                 </div>
@@ -83,6 +83,20 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Settings.PasswordSettingsPopup", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _title = "";
+    private string _passwordLengthLabel = "";
+    private string _includeLowercaseLabel = "";
+    private string _includeUppercaseLabel = "";
+    private string _includeNumbersLabel = "";
+    private string _includeSpecialCharsLabel = "";
+    private string _avoidAmbiguousCharsLabel = "";
+    private string _previewLabel = "";
+    private string _cancelButton = "";
+    private string _useJustOnceButton = "";
+    private string _saveGloballyButton = "";
+    private string _settingsUpdatedMessage = "";
 
     /// <summary>
     /// The PasswordSettings to mutate.
@@ -122,6 +136,20 @@
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings
+        _title = Localizer["Title"];
+        _passwordLengthLabel = Localizer["PasswordLengthLabel"];
+        _includeLowercaseLabel = Localizer["IncludeLowercaseLabel"];
+        _includeUppercaseLabel = Localizer["IncludeUppercaseLabel"];
+        _includeNumbersLabel = Localizer["IncludeNumbersLabel"];
+        _includeSpecialCharsLabel = Localizer["IncludeSpecialCharsLabel"];
+        _avoidAmbiguousCharsLabel = Localizer["AvoidAmbiguousCharsLabel"];
+        _previewLabel = Localizer["PreviewLabel"];
+        _cancelButton = Localizer["CancelButton"];
+        _useJustOnceButton = Localizer["UseJustOnceButton"];
+        _saveGloballyButton = Localizer["SaveGloballyButton"];
+        _settingsUpdatedMessage = Localizer["SettingsUpdatedMessage"];
+        
         // Clone the settings to avoid reference issues
         _workingSettings = new PasswordSettings
         {
@@ -182,7 +210,7 @@
         var settingsJson = System.Text.Json.JsonSerializer.Serialize(_workingSettings);
         await DbService.Settings.SetSettingAsync("PasswordGenerationSettings", settingsJson);
         GlobalLoadingService.Hide();
-        GlobalNotificationService.AddSuccessMessage(Localizer["SettingsUpdatedMessage"], true);
+        GlobalNotificationService.AddSuccessMessage(_settingsUpdatedMessage, true);
 
         // Notify parent with both settings and the generated password.
         await OnSaveSettings.InvokeAsync((_workingSettings, _previewPassword));
diff --git a/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpCodes.razor b/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpCodes.razor
index 06e30385e..2575b82e1 100644
--- a/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpCodes.razor
+++ b/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpCodes.razor
@@ -9,13 +9,13 @@
 <div class="p-4 mb-4 bg-white border border-gray-200 rounded-lg shadow-sm 2xl:col-span-2 dark:border-gray-700 sm:p-6 dark:bg-gray-800">
     <div class="flex justify-between">
         <div>
-            <h3 class="mb-4 text-xl font-semibold dark:text-white">@Localizer["TwoFactorAuthenticationTitle"]</h3>
+            <h3 class="mb-4 text-xl font-semibold dark:text-white">@_twoFactorAuthenticationTitle</h3>
         </div>
         @if (TotpCodeList.Any(t => !t.IsDeleted) && !IsAddFormVisible)
         {
             <div>
                 <button id="add-totp-code" @onclick="ShowAddForm" type="button" class="text-blue-700 hover:text-white border border-blue-700 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-3 py-2 text-center dark:border-blue-500 dark:text-blue-500 dark:hover:text-white dark:hover:bg-blue-600 dark:focus:ring-blue-800">
-                    @Localizer["AddTotpCodeButton"]
+                    @_addTotpCodeButton
                 </button>
             </div>
         }
@@ -24,7 +24,7 @@
     @if ((TotpCodeList.Count == 0 || TotpCodeList.All(t => t.IsDeleted)) && !IsAddFormVisible)
     {
         <div class="flex flex-col justify-center">
-            <p class="text-gray-500 dark:text-gray-400"><a @onclick="ShowAddForm" id="add-totp-code" href="javascript:void(0)" class="text-blue-600 hover:text-blue-800 dark:text-blue-500 dark:hover:text-blue-400">@Localizer["AddTotpCodeDescription"]</a></p>
+            <p class="text-gray-500 dark:text-gray-400"><a @onclick="ShowAddForm" id="add-totp-code" href="javascript:void(0)" class="text-blue-600 hover:text-blue-800 dark:text-blue-500 dark:hover:text-blue-400">@_addTotpCodeDescription</a></p>
         </div>
     }
     else
@@ -35,28 +35,28 @@
                 <EditForm Model="@NewTotpCode" OnValidSubmit="AddTotpCode">
                     <DataAnnotationsValidator />
                     <div class="flex justify-between items-center mb-4">
-                        <h4 class="text-lg font-medium text-gray-900 dark:text-white">@Localizer["AddTotpCodeModalTitle"]</h4>
+                        <h4 class="text-lg font-medium text-gray-900 dark:text-white">@_addTotpCodeModalTitle</h4>
                         <button @onclick="HideAddForm" type="button" class="text-gray-400 bg-transparent hover:bg-gray-200 hover:text-gray-900 rounded-lg text-sm w-8 h-8 ms-auto inline-flex justify-center items-center dark:hover:bg-gray-600 dark:hover:text-white">
                             <svg class="w-3 h-3" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 14 14">
                                 <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m1 1 6 6m0 0 6 6M7 7l6-6M7 7l-6 6"/>
                             </svg>
-                            <span class="sr-only">@Localizer["CloseFormButton"]</span>
+                            <span class="sr-only">@_closeFormButton</span>
                         </button>
                     </div>
-                    <p class="mb-4 text-sm text-gray-500 dark:text-gray-400">@Localizer["TotpInstructions"]</p>
+                    <p class="mb-4 text-sm text-gray-500 dark:text-gray-400">@_totpInstructions</p>
                     <div class="mb-4">
-                        <label for="name" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["NameOptionalLabel"]</label>
+                        <label for="name" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_nameOptionalLabel</label>
                         <InputText id="name" @bind-Value="NewTotpCode.Name" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-600 dark:border-gray-500 dark:placeholder-gray-400 dark:text-white" />
                         <ValidationMessage For="@(() => NewTotpCode.Name)" class="text-red-600 dark:text-red-400 text-sm mt-1" />
                     </div>
                     <div class="mb-4">
-                        <label for="secretKey" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["SecretKeyLabel"]</label>
-                        <InputText id="secretKey" @bind-Value="NewTotpCode.SecretKey" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-600 dark:border-gray-500 dark:placeholder-gray-400 dark:text-white" placeholder="@Localizer["SecretKeyPlaceholder"]" />
+                        <label for="secretKey" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_secretKeyLabel</label>
+                        <InputText id="secretKey" @bind-Value="NewTotpCode.SecretKey" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-600 dark:border-gray-500 dark:placeholder-gray-400 dark:text-white" placeholder="@_secretKeyPlaceholder" />
                         <ValidationMessage For="@(() => NewTotpCode.SecretKey)" class="text-red-600 dark:text-red-400 text-sm mt-1" />
                     </div>
                     <div class="flex justify-end">
                         <button id="save-totp-code" type="submit" class="text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800">
-                            @Localizer["SaveButton"]
+                            @_saveButton
                         </button>
                     </div>
                 </EditForm>
@@ -73,7 +73,7 @@
                         </div>
                         <div class="flex items-center gap-2">
                             <div class="flex flex-col items-end">
-                                <div class="text-sm text-gray-500 dark:text-gray-400">@Localizer["SaveToViewCodeMessage"]</div>
+                                <div class="text-sm text-gray-500 dark:text-gray-400">@_saveToViewCodeMessage</div>
                             </div>
                             <button type="button" @onclick="() => DeleteTotpCode(totpCode)" class="delete-totp-code text-red-600 hover:text-red-800 dark:text-red-500 dark:hover:text-red-400">
                                 <svg class="w-5 h-5" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
@@ -90,6 +90,21 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Components.TotpCodes.TotpCodes", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _twoFactorAuthenticationTitle = "";
+    private string _addTotpCodeButton = "";
+    private string _addTotpCodeDescription = "";
+    private string _addTotpCodeModalTitle = "";
+    private string _closeFormButton = "";
+    private string _totpInstructions = "";
+    private string _nameOptionalLabel = "";
+    private string _secretKeyLabel = "";
+    private string _secretKeyPlaceholder = "";
+    private string _saveButton = "";
+    private string _saveToViewCodeMessage = "";
+    private string _deleteTotpCodeTitle = "";
+    private string _deleteTotpCodeConfirmation = "";
 
     /// <summary>
     /// The list of TOTP codes.
@@ -110,6 +125,21 @@
     /// <inheritdoc/>
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings
+        _twoFactorAuthenticationTitle = Localizer["TwoFactorAuthenticationTitle"];
+        _addTotpCodeButton = Localizer["AddTotpCodeButton"];
+        _addTotpCodeDescription = Localizer["AddTotpCodeDescription"];
+        _addTotpCodeModalTitle = Localizer["AddTotpCodeModalTitle"];
+        _closeFormButton = Localizer["CloseFormButton"];
+        _totpInstructions = Localizer["TotpInstructions"];
+        _nameOptionalLabel = Localizer["NameOptionalLabel"];
+        _secretKeyLabel = Localizer["SecretKeyLabel"];
+        _secretKeyPlaceholder = Localizer["SecretKeyPlaceholder"];
+        _saveButton = Localizer["SaveButton"];
+        _saveToViewCodeMessage = Localizer["SaveToViewCodeMessage"];
+        _deleteTotpCodeTitle = Localizer["DeleteTotpCodeTitle"];
+        _deleteTotpCodeConfirmation = Localizer["DeleteTotpCodeConfirmation"];
+        
         await base.OnInitializedAsync();
     }
 
@@ -177,7 +207,7 @@
     private async Task DeleteTotpCode(TotpCode totpCode)
     {
         // Show confirmation modal.
-        var result = await ConfirmModalService.ShowConfirmation(Localizer["DeleteTotpCodeTitle"], Localizer["DeleteTotpCodeConfirmation"]);
+        var result = await ConfirmModalService.ShowConfirmation(_deleteTotpCodeTitle, _deleteTotpCodeConfirmation);
         if (!result)
         {
             return;
diff --git a/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpViewer.razor b/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpViewer.razor
index d74faf10f..f13f7a2e1 100644
--- a/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpViewer.razor
+++ b/apps/server/AliasVault.Client/Main/Components/TotpCodes/TotpViewer.razor
@@ -9,7 +9,7 @@
 <div class="p-4 mb-4 bg-white border border-gray-200 rounded-lg shadow-sm 2xl:col-span-2 dark:border-gray-700 sm:p-6 dark:bg-gray-800">
     <div class="flex justify-between">
         <div>
-            <h3 class="mb-4 text-xl font-semibold dark:text-white">@Localizer["TwoFactorAuthenticationTitle"]</h3>
+            <h3 class="mb-4 text-xl font-semibold dark:text-white">@_twoFactorAuthenticationTitle</h3>
         </div>
     </div>
 
@@ -20,7 +20,7 @@
     else if (TotpCodeList.Count == 0)
     {
         <div class="flex flex-col justify-center">
-            <p class="text-gray-500 dark:text-gray-400">@Localizer["NoTotpCodesMessage"]</p>
+            <p class="text-gray-500 dark:text-gray-400">@_noTotpCodesMessage</p>
         </div>
     }
     else
@@ -41,7 +41,7 @@
                                 <div class="text-xs">
                                     @if (IsCopied(totpCode.Id.ToString()))
                                     {
-                                        <span class="text-green-600 dark:text-green-400">@Localizer["CopiedMessage"]</span>
+                                        <span class="text-green-600 dark:text-green-400">@_copiedMessage</span>
                                     }
                                     else
                                     {
@@ -62,6 +62,11 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Components.TotpCodes.TotpViewer", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _twoFactorAuthenticationTitle = "";
+    private string _noTotpCodesMessage = "";
+    private string _copiedMessage = "";
 
     /// <summary>
     /// The list of TOTP codes to display.
@@ -86,6 +91,11 @@
     /// <inheritdoc/>
     protected override async Task OnInitializedAsync()
     {
+        // Cache localized strings
+        _twoFactorAuthenticationTitle = Localizer["TwoFactorAuthenticationTitle"];
+        _noTotpCodesMessage = Localizer["NoTotpCodesMessage"];
+        _copiedMessage = Localizer["CopiedMessage"];
+        
         await base.OnInitializedAsync();
 
         // Generate initial codes
diff --git a/apps/server/AliasVault.Client/Main/Components/Widgets/CreateNewIdentityWidget.razor b/apps/server/AliasVault.Client/Main/Components/Widgets/CreateNewIdentityWidget.razor
index 04c1a13bc..73b6aad0f 100644
--- a/apps/server/AliasVault.Client/Main/Components/Widgets/CreateNewIdentityWidget.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Widgets/CreateNewIdentityWidget.razor
@@ -7,7 +7,7 @@
 @implements IAsyncDisposable
 
 <button @ref="buttonRef" @onclick="TogglePopup" id="quickIdentityButton" class="px-4 py-2 text-sm font-medium text-white bg-gradient-to-r from-primary-500 to-primary-600 hover:from-primary-600 hover:to-primary-700 focus:outline-none dark:from-primary-400 dark:to-primary-500 dark:hover:from-primary-500 dark:hover:to-primary-600 rounded-md shadow-sm transition duration-150 ease-in-out transform hover:scale-105 active:scale-95 focus:shadow-outline">
-    @Localizer["NewAliasButtonShort"] <span class="hidden md:inline">@Localizer["NewAliasButtonText"].Value.Substring(1).Trim()</span>
+    @_newAliasButtonShort <span class="hidden md:inline">@_newAliasButtonText.Substring(1).Trim()</span>
 </button>
 
 @if (IsPopupVisible)
@@ -15,25 +15,25 @@
     <ClickOutsideHandler OnClose="ClosePopup" ContentId="quickIdentityPopup,quickIdentityButton">
         <div id="quickIdentityPopup" class="absolute z-50 mt-2 p-4 bg-white rounded-lg shadow-xl border border-gray-300 dark:bg-gray-800 dark:border-gray-400"
              style="@PopupStyle">
-            <h3 class="text-lg font-semibold mb-4 text-gray-900 dark:text-white">@Localizer["CreateNewAliasTitle"]</h3>
+            <h3 class="text-lg font-semibold mb-4 text-gray-900 dark:text-white">@_createNewAliasTitle</h3>
             <EditForm Model="Model" OnValidSubmit="CreateIdentity">
                 <DataAnnotationsValidator />
                 <div class="mb-4">
-                    <EditFormRow Id="serviceName" Label="@Localizer["ServiceNameLabel"]" Placeholder="@Localizer["ServiceNamePlaceholder"]" @bind-Value="Model.ServiceName"></EditFormRow>
+                    <EditFormRow Id="serviceName" Label="@_serviceNameLabel" Placeholder="@_serviceNamePlaceholder" @bind-Value="Model.ServiceName"></EditFormRow>
                     <ValidationMessage For="() => Model.ServiceName"/>
                 </div>
                 <div class="mb-4">
-                    <EditFormRow Id="serviceUrl" Label="@Localizer["ServiceUrlLabel"]" OnFocus="OnFocusUrlInput" @bind-Value="Model.ServiceUrl"></EditFormRow>
+                    <EditFormRow Id="serviceUrl" Label="@_serviceUrlLabel" OnFocus="OnFocusUrlInput" @bind-Value="Model.ServiceUrl"></EditFormRow>
                     <ValidationMessage For="() => Model.ServiceUrl"/>
                 </div>
                 <div class="flex justify-between items-center">
                     <button id="quickIdentitySubmit" type="submit" class="bg-green-600 hover:bg-green-700 text-white font-bold py-2 px-4 rounded">
-                        @Localizer["CreateButton"]
+                        @_createButton
                     </button>
                 </div>
                 <div class="pt-2">
                     <a href="#" @onclick="OpenAdvancedMode" @onclick:preventDefault class="text-sm text-blue-500 hover:text-blue-700">
-                        @Localizer["AdvancedModeLink"]
+                        @_advancedModeLink
                     </a>
                 </div>
             </EditForm>
@@ -43,6 +43,19 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Widgets.CreateNewIdentityWidget", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _newAliasButtonShort = "";
+    private string _newAliasButtonText = "";
+    private string _createNewAliasTitle = "";
+    private string _serviceNameLabel = "";
+    private string _serviceNamePlaceholder = "";
+    private string _serviceUrlLabel = "";
+    private string _createButton = "";
+    private string _advancedModeLink = "";
+    private string _creatingNewAliasMessage = "";
+    private string _createCredentialErrorMessage = "";
+    private string _credentialCreatedSuccessMessage = "";
 
     private bool IsPopupVisible = false;
     private bool IsCreating = false;
@@ -61,6 +74,24 @@
         }
     }
 
+    protected override async Task OnInitializedAsync()
+    {
+        // Cache localized strings
+        _newAliasButtonShort = Localizer["NewAliasButtonShort"];
+        _newAliasButtonText = Localizer["NewAliasButtonText"];
+        _createNewAliasTitle = Localizer["CreateNewAliasTitle"];
+        _serviceNameLabel = Localizer["ServiceNameLabel"];
+        _serviceNamePlaceholder = Localizer["ServiceNamePlaceholder"];
+        _serviceUrlLabel = Localizer["ServiceUrlLabel"];
+        _createButton = Localizer["CreateButton"];
+        _advancedModeLink = Localizer["AdvancedModeLink"];
+        _creatingNewAliasMessage = Localizer["CreatingNewAliasMessage"];
+        _createCredentialErrorMessage = Localizer["CreateCredentialErrorMessage"];
+        _credentialCreatedSuccessMessage = Localizer["CredentialCreatedSuccessMessage"];
+        
+        await base.OnInitializedAsync();
+    }
+
     /// <inheritdoc />
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
@@ -150,7 +181,7 @@
         }
 
         IsCreating = true;
-        GlobalLoadingSpinner.Show(Localizer["CreatingNewAliasMessage"]);
+        GlobalLoadingSpinner.Show(_creatingNewAliasMessage);
         StateHasChanged();
 
         var credential = new Credential();
@@ -173,12 +204,12 @@
             // Error saving.
             IsCreating = false;
             GlobalLoadingSpinner.Hide();
-            GlobalNotificationService.AddErrorMessage(Localizer["CreateCredentialErrorMessage"], true);
+            GlobalNotificationService.AddErrorMessage(_createCredentialErrorMessage, true);
             return;
         }
 
         // No error, add success message.
-        GlobalNotificationService.AddSuccessMessage(Localizer["CredentialCreatedSuccessMessage"]);
+        GlobalNotificationService.AddSuccessMessage(_credentialCreatedSuccessMessage);
 
         NavigationManager.NavigateTo("/credentials/" + id);
 
diff --git a/apps/server/AliasVault.Client/Main/Components/Widgets/SearchWidget.razor b/apps/server/AliasVault.Client/Main/Components/Widgets/SearchWidget.razor
index 8e6c4cd56..b7b2294c9 100644
--- a/apps/server/AliasVault.Client/Main/Components/Widgets/SearchWidget.razor
+++ b/apps/server/AliasVault.Client/Main/Components/Widgets/SearchWidget.razor
@@ -6,78 +6,90 @@
 @implements IAsyncDisposable
 @using Microsoft.Extensions.Localization
 
-<ClickOutsideHandler OnClose="OnClose" ContentId="searchWidgetContainer">
-    <div class="relative" id="searchWidgetContainer">
-        <input
-            id="searchWidget"
-            type="text"
-            placeholder="@Localizer["SearchVaultPlaceholder"]"
-            autocomplete="off"
-            class="w-full px-4 py-2 text-gray-700 bg-white border rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500 dark:bg-gray-800 dark:text-gray-300 dark:border-gray-600 dark:focus:ring-primary-500"
-            @bind-value="SearchTerm"
-            @oninput="SearchTermChanged"
-            @onfocus="OnFocus"
-            @onkeydown="HandleKeyDown"/>
+<div class="relative" id="searchWidgetContainer">
+    <input
+        id="searchWidget"
+        type="text"
+        placeholder="@_searchPlaceholder"
+        autocomplete="off"
+        class="w-full px-4 py-2 text-gray-700 bg-white border rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500 dark:bg-gray-800 dark:text-gray-300 dark:border-gray-600 dark:focus:ring-primary-500"
+        @bind-value="SearchTerm"
+        @oninput="SearchTermChanged"
+        @onfocus="OnFocus"
+        @onkeydown="HandleKeyDown"/>
 
-        @if (ShowHelpText)
-        {
-            <div class="absolute z-10 w-full mt-1 bg-white rounded-md shadow-lg dark:bg-gray-800 p-2 text-sm text-gray-600 dark:text-gray-400">
-                @if (string.IsNullOrEmpty(SearchTerm))
-                {
-                    <p>@Localizer["SearchHelpText"]</p>
-                }
-                else if (SearchTerm.Length == 1)
-                {
-                    <p>@Localizer["SearchTooShortMessage"]</p>
-                }
-                else
-                {
-                    <p>@string.Format(Localizer["SearchingForMessage"], SearchTerm)</p>
-                }
-            </div>
-        }
-
-        @if (ShowResults && SearchTerm.Length >= 2)
-        {
-            @if (SearchResults.Any())
+    @if (ShowHelpText || ShowResults)
+    {
+        <ClickOutsideHandler OnClose="OnClose" ContentId="searchWidgetContainer">
+            @if (ShowHelpText)
             {
-                <div class="absolute z-10 w-screen left-0 sm:left-auto sm:w-full mt-1 bg-white rounded-md shadow-lg dark:bg-gray-800 text-sm text-gray-600 dark:text-gray-400">
-                    @for (int i = 0; i < SearchResults.Count; i++)
+                <div class="absolute z-10 w-full mt-1 bg-white rounded-md shadow-lg dark:bg-gray-800 p-2 text-sm text-gray-600 dark:text-gray-400">
+                    @if (string.IsNullOrEmpty(SearchTerm))
                     {
-                        var result = SearchResults[i];
-                        <div
-                            class="search-result @(i == SelectedIndex ? "bg-gray-100 dark:bg-gray-700" : "") px-4 py-2 cursor-pointer hover:bg-gray-100 dark:hover:bg-gray-700 flex items-center"
-                            @onclick="() => SelectResult(result)">
-                            <DisplayFavicon FaviconBytes="@result.Service.Logo" Width="24" />
-                            <div class="ml-2">
-                                <div>@result.Service.Name</div>
-                                @if (!string.IsNullOrEmpty(result.Alias.Email))
-                                {
-                                    <span class="text-gray-500">(@result.Alias.Email)</span>
-                                }
-                                else if (!string.IsNullOrEmpty(result.Username))
-                                {
-                                    <span class="text-gray-500">(@result.Username)</span>
-                                }
-                            </div>
-                        </div>
+                        <p>@_searchHelpText</p>
+                    }
+                    else if (SearchTerm.Length == 1)
+                    {
+                        <p>@_searchTooShortMessage</p>
+                    }
+                    else
+                    {
+                        <p>@string.Format(_searchingForMessage, SearchTerm)</p>
                     }
                 </div>
             }
-            else
+
+            @if (ShowResults && SearchTerm.Length >= 2)
             {
-                <div class="absolute z-10 w-screen left-0 sm:left-auto sm:w-full mt-1 bg-white rounded-md shadow-lg dark:bg-gray-800 text-sm text-gray-600 dark:text-gray-400">
-                    <div class="px-4 py-2 cursor-pointer hover:bg-gray-100 dark:hover:bg-gray-700">
-                        @Localizer["NoResultsFoundMessage"]
+                @if (SearchResults.Any())
+                {
+                    <div class="absolute z-10 w-screen left-0 sm:left-auto sm:w-full mt-1 bg-white rounded-md shadow-lg dark:bg-gray-800 text-sm text-gray-600 dark:text-gray-400">
+                        @for (int i = 0; i < SearchResults.Count; i++)
+                        {
+                            var result = SearchResults[i];
+                            <div
+                                class="search-result @(i == SelectedIndex ? "bg-gray-100 dark:bg-gray-700" : "") px-4 py-2 cursor-pointer hover:bg-gray-100 dark:hover:bg-gray-700 flex items-center"
+                                @onclick="() => SelectResult(result)">
+                                <DisplayFavicon FaviconBytes="@result.Service.Logo" Width="24" />
+                                <div class="ml-2">
+                                    <div>@result.Service.Name</div>
+                                    @if (!string.IsNullOrEmpty(result.Alias.Email))
+                                    {
+                                        <span class="text-gray-500">(@result.Alias.Email)</span>
+                                    }
+                                    else if (!string.IsNullOrEmpty(result.Username))
+                                    {
+                                        <span class="text-gray-500">(@result.Username)</span>
+                                    }
+                                </div>
+                            </div>
+                        }
                     </div>
-                </div>
+                }
+                else
+                {
+                    <div class="absolute z-10 w-screen left-0 sm:left-auto sm:w-full mt-1 bg-white rounded-md shadow-lg dark:bg-gray-800 text-sm text-gray-600 dark:text-gray-400">
+                        <div class="px-4 py-2 cursor-pointer hover:bg-gray-100 dark:hover:bg-gray-700">
+                            @_noResultsFoundMessage
+                        </div>
+                    </div>
+                }
             }
-        }
-    </div>
-</ClickOutsideHandler>
+        </ClickOutsideHandler>
+    }
+</div>
 
 @code {
-    private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Widgets.SearchWidget", "AliasVault.Client");
+    private IStringLocalizer? _localizer;
+    private IStringLocalizer Localizer => _localizer ??= LocalizerFactory.Create("Components.Main.Widgets.SearchWidget", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _searchPlaceholder = string.Empty;
+    private string _searchHelpText = string.Empty;
+    private string _searchTooShortMessage = string.Empty;
+    private string _searchingForMessage = string.Empty;
+    private string _noResultsFoundMessage = string.Empty;
+    
     private string SearchTerm { get; set; } = string.Empty;
     private List<Credential> SearchResults { get; set; } = new();
     private bool ShowResults { get; set; }
@@ -99,6 +111,13 @@
 
         if (firstRender)
         {
+            // Initialize localized strings once
+            _searchPlaceholder = Localizer["SearchVaultPlaceholder"];
+            _searchHelpText = Localizer["SearchHelpText"];
+            _searchTooShortMessage = Localizer["SearchTooShortMessage"];
+            _searchingForMessage = Localizer["SearchingForMessage"];
+            _noResultsFoundMessage = Localizer["NoResultsFoundMessage"];
+            
             await KeyboardShortcutService.RegisterShortcutAsync("gs", FocusSearchField);
             await KeyboardShortcutService.RegisterShortcutAsync("gf", FocusSearchField);
             NavigationManager.LocationChanged += ResetSearchField;
diff --git a/apps/server/AliasVault.Client/Main/Layout/Footer.razor b/apps/server/AliasVault.Client/Main/Layout/Footer.razor
index 7554e1697..a65d018f9 100644
--- a/apps/server/AliasVault.Client/Main/Layout/Footer.razor
+++ b/apps/server/AliasVault.Client/Main/Layout/Footer.razor
@@ -8,7 +8,7 @@
     <div class="container mx-auto px-4 py-4">
         <div class="flex flex-col lg:flex-row justify-between items-center">
             <p class="text-sm text-center text-gray-500 mb-4 lg:mb-0">
-                © 2024 <span>@AppInfo.ApplicationName v@(AppInfo.GetFullVersion())</span>. @Localizer["CopyrightText"]
+                © 2024 <span>@AppInfo.ApplicationName v@(AppInfo.GetFullVersion())</span>. @_copyrightText
             </p>
             <div class="hidden lg:block text-center text-gray-400 text-sm">@_randomQuote</div>
             <ul class="flex flex-wrap items-center justify-center">
@@ -29,14 +29,9 @@
 
     private IStringLocalizer Localizer => LocalizerFactory.Create("Layout.Footer", "AliasVault.Client");
 
-    private string[] Quotes =>
-    [
-        Localizer["TipCreateShortcut"],
-        Localizer["TipFindShortcut"],
-        Localizer["TipHomeShortcut"],
-        Localizer["TipLockShortcut"],
-    ];
-
+    // Cached localized strings
+    private string _copyrightText = string.Empty;
+    private string[] _quotes = [];
     private string _randomQuote = string.Empty;
 
     /// <inheritdoc />
@@ -50,7 +45,16 @@
     {
         if (firstRender)
         {
-            _randomQuote = Quotes[Random.Shared.Next(Quotes.Length)];
+            // Cache localized strings to prevent infinite rendering loops
+            _copyrightText = Localizer["CopyrightText"];
+            _quotes = [
+                Localizer["TipCreateShortcut"],
+                Localizer["TipFindShortcut"],
+                Localizer["TipHomeShortcut"],
+                Localizer["TipLockShortcut"],
+            ];
+            
+            _randomQuote = _quotes[Random.Shared.Next(_quotes.Length)];
             NavigationManager.LocationChanged += RefreshQuote;
         }
     }
@@ -60,7 +64,7 @@
     /// </summary>
     private void RefreshQuote(object? sender, LocationChangedEventArgs e)
     {
-        _randomQuote = Quotes[Random.Shared.Next(Quotes.Length)];
+        _randomQuote = _quotes[Random.Shared.Next(_quotes.Length)];
         StateHasChanged();
     }
 }
diff --git a/apps/server/AliasVault.Client/Main/Layout/TopMenu.razor b/apps/server/AliasVault.Client/Main/Layout/TopMenu.razor
index 83b9e5873..82f27f671 100644
--- a/apps/server/AliasVault.Client/Main/Layout/TopMenu.razor
+++ b/apps/server/AliasVault.Client/Main/Layout/TopMenu.razor
@@ -1,5 +1,7 @@
 @inherits AliasVault.Client.Main.Pages.MainBase
 @using Microsoft.Extensions.Localization
+@using AliasVault.Client.Services
+@inject LanguageService LanguageService
 @implements IDisposable
 
 <header>
@@ -10,17 +12,17 @@
                     <img src="/img/icon-nopadding.png" class="mr-3 h-8 w-10" alt="AliasVault Logo">
                     <span class="self-center hidden sm:flex text-2xl font-semibold content-start align-top whitespace-nowrap dark:text-white">
                         AliasVault
-                        <span class="text-primary-500 text-[10px] ml-1 font-normal hidden sm:inline-block">@Localizer["BetaLabel"]</span>
+                        <span class="text-primary-500 text-[10px] ml-1 font-normal hidden sm:inline-block">@_betaLabel</span>
                     </span>
                 </a>
 
                 <div class="hidden justify-between items-center w-full lg:flex lg:w-auto lg:order-1">
                     <ul class="flex flex-col mt-4 space-x-6 text-sm font-medium lg:flex-row xl:space-x-8 lg:mt-0">
                         <NavLink href="/credentials" class="block text-gray-700 hover:text-primary-700 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["CredentialsNav"]
+                            @_credentialsNav
                         </NavLink>
                         <NavLink href="/emails" class="block text-gray-700 hover:text-primary-700 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["EmailsNav"]
+                            @_emailsNav
                         </NavLink>
                     </ul>
                 </div>
@@ -36,7 +38,7 @@
                 <DbLockButton />
                 <DbStatusIndicator />
                <button @onclick="ToggleMobileMenu" type="button" id="toggleMobileMenuButton" class="items-center p-2 text-gray-500 rounded-lg md:ml-2 hover:text-gray-900 hover:bg-gray-100 dark:text-gray-400 dark:hover:text-white dark:hover:bg-gray-700 focus:ring-4 focus:ring-gray-300 dark:focus:ring-gray-600" aria-expanded="false" data-dropdown-toggle="mobileMenuDropdown">
-                    <span class="sr-only">@Localizer["OpenMenuLabel"]</span>
+                    <span class="sr-only">@_openMenuLabel</span>
                     <svg class="w-6 h-6" aria-hidden="true" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 15a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1z" clip-rule="evenodd"></path></svg>
                 </button>
             </div>
@@ -45,12 +47,12 @@
                 <ul class="lg:hidden py-1 font-light text-gray-500 dark:text-gray-400" aria-labelledby="mobileMenuDropdownButton">
                     <li>
                         <NavLink href="/credentials" class="block py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.Prefix">
-                            @Localizer["CredentialsNav"]
+                            @_credentialsNav
                         </NavLink>
                     </li>
                     <li>
                         <NavLink href="/emails" class="block py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["EmailsNav"]
+                            @_emailsNav
                         </NavLink>
                     </li>
                 </ul>
@@ -60,37 +62,37 @@
                 <ul class="py-1 font-light text-gray-500 dark:text-gray-400" aria-labelledby="mobileMenuDropdownButton">
                     <li>
                         <NavLink href="/settings/general" class="block py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["GeneralSettingsNav"]
+                            @_generalSettingsNav
                         </NavLink>
                     </li>
                     <li>
                         <NavLink href="/settings/security" class="block py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["SecuritySettingsNav"]
+                            @_securitySettingsNav
                         </NavLink>
                     </li>
                     <li>
                         <NavLink href="/settings/import-export" class="block py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["ImportExportNav"]
+                            @_importExportNav
                         </NavLink>
                     </li>
                     <li class="border-t border-b border-gray-100 dark:border-gray-600">
                         <NavLink href="/settings/apps" class="block py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["ExtensionsAppsNav"]
+                            @_extensionsAppsNav
                             <span class="ml-2 inline-flex items-center justify-center px-2 py-0.5 text-xs font-medium rounded bg-primary-100 text-primary-800 dark:bg-primary-900 dark:text-primary-200">
-                                @Localizer["NewLabel"]
+                                @_newLabel
                             </span>
                         </NavLink>
                     </li>
                     <li>
                         <button id="theme-toggle" data-tooltip-target="tooltip-toggle" type="button" class="w-full text-start py-2 px-4 text-sm hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-400 dark:hover:text-white">
-                            @Localizer["ToggleDarkMode"]
+                            @_toggleDarkMode
                             <svg id="theme-toggle-dark-icon" class="hidden w-5 h-5 align-middle inline-block" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z"></path></svg>
                             <svg id="theme-toggle-light-icon" class="hidden w-5 h-5 align-middle inline-block" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.706.707a1 1 0 11-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.465 5.05l-.708-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z" fill-rule="evenodd" clip-rule="evenodd"></path></svg>
                         </button>
                     </li>
                     <li>
                         <NavLink href="/user/logout" class="block py-2 px-4 font-bold text-sm text-primary-700 hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-primary-200 dark:hover:text-white" ActiveClass="text-primary-700 dark:text-primary-500" Match="NavLinkMatch.All">
-                            @Localizer["LogOut"]
+                            @_logOut
                         </NavLink>
                     </li>
                 </ul>
@@ -101,11 +103,25 @@
 </header>
 
 @code {
-    private IStringLocalizer Localizer => LocalizerFactory.Create("Layout.TopMenu", "AliasVault.Client");
+    private IStringLocalizer? _localizer;
+    private IStringLocalizer Localizer => _localizer ??= LocalizerFactory.Create("Layout.TopMenu", "AliasVault.Client");
     private bool IsUserMenuOpen { get; set; } = false;
     private bool IsMobileMenuOpen { get; set; } = false;
     private string Username { get; set; } = string.Empty;
 
+    // Cached localized strings
+    private string _betaLabel = string.Empty;
+    private string _credentialsNav = string.Empty;
+    private string _emailsNav = string.Empty;
+    private string _openMenuLabel = string.Empty;
+    private string _generalSettingsNav = string.Empty;
+    private string _securitySettingsNav = string.Empty;
+    private string _importExportNav = string.Empty;
+    private string _extensionsAppsNav = string.Empty;
+    private string _newLabel = string.Empty;
+    private string _toggleDarkMode = string.Empty;
+    private string _logOut = string.Empty;
+
     /// <summary>
     /// Close the menu.
     /// </summary>
@@ -132,6 +148,7 @@
     public void Dispose()
     {
         NavigationManager.LocationChanged -= LocationChanged;
+        LanguageService.LanguageChanged -= OnLanguageChanged;
     }
 
     /// <inheritdoc />
@@ -140,6 +157,40 @@
         await base.OnInitializedAsync();
         Username = await GetUsernameAsync();
         NavigationManager.LocationChanged += LocationChanged;
+        LanguageService.LanguageChanged += OnLanguageChanged;
+
+        // Cache localized strings to prevent infinite rendering loops
+        RefreshLocalizedStrings();
+    }
+
+    /// <summary>
+    /// Refreshes all cached localized strings.
+    /// </summary>
+    private void RefreshLocalizedStrings()
+    {
+        _betaLabel = Localizer["BetaLabel"];
+        _credentialsNav = Localizer["CredentialsNav"];
+        _emailsNav = Localizer["EmailsNav"];
+        _openMenuLabel = Localizer["OpenMenuLabel"];
+        _generalSettingsNav = Localizer["GeneralSettingsNav"];
+        _securitySettingsNav = Localizer["SecuritySettingsNav"];
+        _importExportNav = Localizer["ImportExportNav"];
+        _extensionsAppsNav = Localizer["ExtensionsAppsNav"];
+        _newLabel = Localizer["NewLabel"];
+        _toggleDarkMode = Localizer["ToggleDarkMode"];
+        _logOut = Localizer["LogOut"];
+    }
+
+    /// <summary>
+    /// Handles language change events.
+    /// </summary>
+    /// <param name="newLanguage">The new language code.</param>
+    private void OnLanguageChanged(string newLanguage)
+    {
+        // Re-create the localizer to pick up the new culture
+        _localizer = null;
+        RefreshLocalizedStrings();
+        StateHasChanged();
     }
 
     /// <inheritdoc />
diff --git a/apps/server/AliasVault.Client/Main/Pages/Credentials/Home.razor b/apps/server/AliasVault.Client/Main/Pages/Credentials/Home.razor
index 626224cb9..94e938b01 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Credentials/Home.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Credentials/Home.razor
@@ -8,8 +8,8 @@
 
 <PageHeader
     BreadcrumbItems="@BreadcrumbItems"
-    Title="@Localizer["PageTitle"]"
-    Description="@Localizer["PageDescription"]">
+    Title="@_pageTitle"
+    Description="@_pageDescription">
     <CustomActions>
         <div class="relative">
             <button @onclick="ToggleSettingsDropdown" id="settingsButton" class="p-2 text-gray-500 rounded-lg hover:text-gray-900 hover:bg-gray-100 dark:text-gray-400 dark:hover:text-white dark:hover:bg-gray-700">
@@ -24,17 +24,17 @@
                     <div id="settingsDropdown" class="absolute right-0 z-10 mt-2 min-w-[220px] origin-top-right rounded-md bg-white shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none dark:bg-gray-700">
                         <div class="p-4">
                             <div class="mb-4">
-                                <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["ViewModeLabel"]</label>
+                                <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_viewModeLabel</label>
                                 <select @bind="ViewMode" @bind:after="CloseSettingsPopup" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
-                                    <option value="grid">@Localizer["GridViewOption"]</option>
-                                    <option value="table">@Localizer["TableViewOption"]</option>
+                                    <option value="grid">@_gridViewOption</option>
+                                    <option value="table">@_tableViewOption</option>
                                 </select>
                             </div>
                             <div class="mb-4">
-                                <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["SortOrderLabel"]</label>
+                                <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_sortOrderLabel</label>
                                 <select @bind="SortOrder" @bind:after="CloseSettingsPopup" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
-                                    <option value="asc">@Localizer["OldestFirstOption"]</option>
-                                    <option value="desc">@Localizer["NewestFirstOption"]</option>
+                                    <option value="asc">@_oldestFirstOption</option>
+                                    <option value="desc">@_newestFirstOption</option>
                                 </select>
                             </div>
                         </div>
@@ -65,23 +65,23 @@ else
             {
                 <div class="credential-card col-span-full p-4 space-y-2 bg-amber-50 border border-primary-500 rounded-lg shadow-sm dark:border-primary-700 dark:bg-gray-800">
                     <div class="px-4 py-6 text-gray-700 dark:text-gray-200 rounded text-center flex flex-col items-center">
-                        <p class="mb-2 text-lg font-semibold text-primary-700 dark:text-primary-400">@Localizer["NoCredentialsTitle"]</p>
+                        <p class="mb-2 text-lg font-semibold text-primary-700 dark:text-primary-400">@_noCredentialsTitle</p>
 
                         <div class="max-w-md mx-auto">
                             <div class="mb-6">
-                                <p class="text-sm mb-2">@Localizer["CreateFirstCredentialText"] <span class="hidden md:inline">@Localizer["NewAliasButtonText"]</span><span class="md:hidden">@Localizer["NewAliasButtonTextMobile"]</span> @Localizer["ButtonLocationText"]</p>
+                                <p class="text-sm mb-2">@_createFirstCredentialText <span class="hidden md:inline">@_newAliasButtonText</span><span class="md:hidden">@_newAliasButtonTextMobile</span> @_buttonLocationText</p>
                             </div>
 
                             <div class="flex items-center my-6">
                                 <div class="flex-1 h-px bg-gray-300 dark:bg-gray-600"></div>
-                                <span class="px-4 text-sm text-gray-500 dark:text-gray-400">@Localizer["OrText"]</span>
+                                <span class="px-4 text-sm text-gray-500 dark:text-gray-400">@_orText</span>
                                 <div class="flex-1 h-px bg-gray-300 dark:bg-gray-600"></div>
                             </div>
 
                             <div>
-                                <p class="text-sm mb-2">@Localizer["ImportCredentialsText"]</p>
+                                <p class="text-sm mb-2">@_importCredentialsText</p>
                                 <a href="/settings/import-export" class="inline-block text-sm px-4 py-2 bg-primary-600 text-white rounded-lg hover:bg-primary-700 transition-colors dark:bg-primary-700 dark:hover:bg-primary-600">
-                                    @Localizer["ImportButtonText"]
+                                    @_importButtonText
                                 </a>
                             </div>
                         </div>
@@ -99,6 +99,25 @@ else
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Pages.Main.Credentials.Home", "AliasVault.Client");
 
+    // Cached localized strings
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _viewModeLabel = string.Empty;
+    private string _gridViewOption = string.Empty;
+    private string _tableViewOption = string.Empty;
+    private string _sortOrderLabel = string.Empty;
+    private string _oldestFirstOption = string.Empty;
+    private string _newestFirstOption = string.Empty;
+    private string _noCredentialsTitle = string.Empty;
+    private string _createFirstCredentialText = string.Empty;
+    private string _newAliasButtonText = string.Empty;
+    private string _newAliasButtonTextMobile = string.Empty;
+    private string _buttonLocationText = string.Empty;
+    private string _orText = string.Empty;
+    private string _importCredentialsText = string.Empty;
+    private string _importButtonText = string.Empty;
+    private string _failedToLoadCredentialsMessage = string.Empty;
+
     /// <summary>
     /// Gets or sets whether the credentials are being loaded.
     /// </summary>
@@ -159,6 +178,25 @@ else
 
         if (firstRender)
         {
+            // Cache localized strings to prevent infinite rendering loops
+            _pageTitle = Localizer["PageTitle"];
+            _pageDescription = Localizer["PageDescription"];
+            _viewModeLabel = Localizer["ViewModeLabel"];
+            _gridViewOption = Localizer["GridViewOption"];
+            _tableViewOption = Localizer["TableViewOption"];
+            _sortOrderLabel = Localizer["SortOrderLabel"];
+            _oldestFirstOption = Localizer["OldestFirstOption"];
+            _newestFirstOption = Localizer["NewestFirstOption"];
+            _noCredentialsTitle = Localizer["NoCredentialsTitle"];
+            _createFirstCredentialText = Localizer["CreateFirstCredentialText"];
+            _newAliasButtonText = Localizer["NewAliasButtonText"];
+            _newAliasButtonTextMobile = Localizer["NewAliasButtonTextMobile"];
+            _buttonLocationText = Localizer["ButtonLocationText"];
+            _orText = Localizer["OrText"];
+            _importCredentialsText = Localizer["ImportCredentialsText"];
+            _importButtonText = Localizer["ImportButtonText"];
+            _failedToLoadCredentialsMessage = Localizer["FailedToLoadCredentialsMessage"];
+            
             await LoadCredentialsAsync();
         }
     }
@@ -176,7 +214,7 @@ else
         if (credentialListEntries is null)
         {
             // Error loading aliases.
-            GlobalNotificationService.AddErrorMessage(Localizer["FailedToLoadCredentialsMessage"], true);
+            GlobalNotificationService.AddErrorMessage(_failedToLoadCredentialsMessage, true);
             return;
         }
 
diff --git a/apps/server/AliasVault.Client/Main/Pages/Emails/Home.razor b/apps/server/AliasVault.Client/Main/Pages/Emails/Home.razor
index efdb64e40..a448fcf56 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Emails/Home.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Emails/Home.razor
@@ -16,7 +16,7 @@
 @using Microsoft.Extensions.Localization
 @implements IAsyncDisposable
 
-<LayoutPageTitle>@Localizer["PageTitle"]</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 @if (EmailModalVisible)
 {
@@ -25,14 +25,14 @@
 
 <PageHeader
     BreadcrumbItems="@BreadcrumbItems"
-    Title="@Localizer["PageTitle"]"
-    Description="@Localizer["PageDescription"]">
+    Title="@_pageTitle"
+    Description="@_pageDescription">
     <CustomActions>
         @if (DbService.Settings.AutoEmailRefresh)
         {
-            <div class="w-3 h-3 mr-2 rounded-full bg-primary-300 border-2 border-primary-100 animate-pulse" title="@Localizer["AutoRefreshEnabledTooltip"]"></div>
+            <div class="w-3 h-3 mr-2 rounded-full bg-primary-300 border-2 border-primary-100 animate-pulse" title="@_autoRefreshEnabledTooltip"></div>
         }
-        <RefreshButton OnClick="RefreshData" ButtonText="@Localizer["RefreshButton"]" />
+        <RefreshButton OnClick="RefreshData" ButtonText="@_refreshButton" />
     </CustomActions>
 </PageHeader>
 
@@ -76,7 +76,7 @@ else if (NoEmailClaims)
 {
     <div class="p-4 mx-4 mt-4 bg-white border border-gray-200 rounded-lg shadow-sm dark:border-gray-700 dark:bg-gray-800">
         <div class="px-4 py-2 text-gray-400 rounded">
-            <p class="text-gray-500 dark:text-gray-400">@Localizer["NoEmailClaimsMessage"]</p>
+            <p class="text-gray-500 dark:text-gray-400">@_noEmailClaimsMessage</p>
         </div>
     </div>
 }
@@ -92,7 +92,7 @@ else
                     @if (EmailList.Count == 0)
                     {
                         <li class="p-4 text-center text-gray-500 dark:text-gray-300">
-                            @Localizer["NoEmailsReceivedMessage"]
+                            @_noEmailsReceivedMessage
                         </li>
                     }
                     else
@@ -150,12 +150,12 @@ else
                                                         <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
                                                         <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
                                                     </svg>
-                                                    @Localizer["LoadingText"]
+                                                    @_loadingText
                                                 </span>
                                             }
                                             else
                                             {
-                                                <span>@string.Format(Localizer["LoadMoreButtonText"], TotalRecords - EmailList.Count)</span>
+                                                <span>@string.Format(_loadMoreButtonText, TotalRecords - EmailList.Count)</span>
                                             }
                                         </button>
                                     </li>
@@ -182,6 +182,20 @@ else
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Pages.Main.Emails.Home", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _autoRefreshEnabledTooltip = string.Empty;
+    private string _refreshButton = string.Empty;
+    private string _noEmailClaimsMessage = string.Empty;
+    private string _noEmailsReceivedMessage = string.Empty;
+    private string _loadingText = string.Empty;
+    private string _loadMoreButtonText = string.Empty;
+    private string _claimDoesNotExistError = string.Empty;
+    private string _loadEmailsFailedMessage = string.Empty;
+    private string _loadMoreEmailsFailedMessage = string.Empty;
+    
     private List<MailListViewModel> EmailList { get; set; } = [];
     private bool IsLoading => LoadingService.IsLoading("emails");
     private int CurrentPage { get; set; } = 1;
@@ -361,7 +375,7 @@ else
                             switch (errorResponse.Code)
                             {
                                 case "CLAIM_DOES_NOT_EXIST":
-                                    GlobalNotificationService.AddErrorMessage(Localizer["ClaimDoesNotExistError"], true);
+                                    GlobalNotificationService.AddErrorMessage(_claimDoesNotExistError, true);
                                     break;
                                 default:
                                     throw new ArgumentException(errorResponse.Message);
@@ -447,6 +461,19 @@ else
     {
         await base.OnInitializedAsync();
 
+        // Cache localized strings to prevent infinite rendering loops
+        _pageTitle = Localizer["PageTitle"];
+        _pageDescription = Localizer["PageDescription"];
+        _autoRefreshEnabledTooltip = Localizer["AutoRefreshEnabledTooltip"];
+        _refreshButton = Localizer["RefreshButton"];
+        _noEmailClaimsMessage = Localizer["NoEmailClaimsMessage"];
+        _noEmailsReceivedMessage = Localizer["NoEmailsReceivedMessage"];
+        _loadingText = Localizer["LoadingText"];
+        _loadMoreButtonText = Localizer["LoadMoreButtonText"];
+        _claimDoesNotExistError = Localizer["ClaimDoesNotExistError"];
+        _loadEmailsFailedMessage = Localizer["LoadEmailsFailedMessage"];
+        _loadMoreEmailsFailedMessage = Localizer["LoadMoreEmailsFailedMessage"];
+
         // Create a single object reference for JS interop
         _dotNetRef = DotNetObjectReference.Create(this);
         await JsInteropService.RegisterVisibilityCallback(_dotNetRef);
@@ -634,7 +661,7 @@ else
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage(string.Format(Localizer["LoadEmailsFailedMessage"], ex.Message), true);
+            GlobalNotificationService.AddErrorMessage(string.Format(_loadEmailsFailedMessage, ex.Message), true);
             Logger.LogError(ex, "An error occurred while loading email for preview");
         }
     }
@@ -730,7 +757,7 @@ else
         }
         catch (Exception ex)
         {
-            GlobalNotificationService.AddErrorMessage(string.Format(Localizer["LoadMoreEmailsFailedMessage"], ex.Message), true);
+            GlobalNotificationService.AddErrorMessage(string.Format(_loadMoreEmailsFailedMessage, ex.Message), true);
             Logger.LogError(ex, "An error occurred while loading more emails");
         }
         finally
diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/ImportExport.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/ImportExport.razor
index f411623f3..2fb2e830a 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/ImportExport.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/ImportExport.razor
@@ -8,18 +8,18 @@
 @using AliasVault.Client.Main.Pages.Settings.ImportExport.Components
 @using AliasVault.ImportExport
 
-<LayoutPageTitle>@Localizer["PageTitle"]</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 <PageHeader
     BreadcrumbItems="@BreadcrumbItems"
-    Title="@Localizer["PageTitle"]"
-    Description="@Localizer["PageDescription"]">
+    Title="@_pageTitle"
+    Description="@_pageDescription">
 </PageHeader>
 
 <div class="p-4 mx-4 mb-4 bg-white border border-gray-200 rounded-lg shadow-sm 2xl:col-span-2 dark:border-gray-700 sm:p-6 dark:bg-gray-800">
-    <h3 class="mb-4 text-xl font-semibold dark:text-white">@Localizer["ImportSectionTitle"]</h3>
+    <h3 class="mb-4 text-xl font-semibold dark:text-white">@_importSectionTitle</h3>
     <div class="mb-4 text-sm text-gray-500 dark:text-gray-400">
-        @((MarkupString)Localizer["ImportSectionDescription"].Value)
+        @((MarkupString)_importSectionDescription)
     </div>
     <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
         <ImportService1Password />
@@ -38,16 +38,16 @@
 </div>
 
 <div class="p-4 mx-4 mb-4 bg-white border border-gray-200 rounded-lg shadow-sm 2xl:col-span-2 dark:border-gray-700 sm:p-6 dark:bg-gray-800">
-    <h3 class="mb-4 text-xl font-semibold dark:text-white">@Localizer["ExportSectionTitle"]</h3>
+    <h3 class="mb-4 text-xl font-semibold dark:text-white">@_exportSectionTitle</h3>
     <div class="mb-4">
         <p class="text-sm text-gray-500 dark:text-gray-400 mb-4">
-            @Localizer["ExportSectionDescription"]
+            @_exportSectionDescription
         </p>
         <div>
-            <Button OnClick="@(() => ShowExportConfirmation(ExportType.Csv))">@Localizer["ExportCsvButton"]</Button>
+            <Button OnClick="@(() => ShowExportConfirmation(ExportType.Csv))">@_exportCsvButton</Button>
         </div>
         <div class="mt-6">
-            <Button OnClick="@(() => ShowExportConfirmation(ExportType.Sqlite))">@Localizer["ExportSqliteButton"]</Button>
+            <Button OnClick="@(() => ShowExportConfirmation(ExportType.Sqlite))">@_exportSqliteButton</Button>
         </div>
     </div>
 </div>
@@ -56,6 +56,18 @@
     private IStringLocalizer Localizer => LocalizerFactory.Create("Pages.Main.Settings.ImportExport.ImportExport", "AliasVault.Client");
     private ExportType _currentExportType;
 
+    // Cached localized strings for performance
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _importSectionTitle = string.Empty;
+    private string _importSectionDescription = string.Empty;
+    private string _exportSectionTitle = string.Empty;
+    private string _exportSectionDescription = string.Empty;
+    private string _exportCsvButton = string.Empty;
+    private string _exportSqliteButton = string.Empty;
+    private string _exportWarningMessage = string.Empty;
+    private string _exportConfirmTitle = string.Empty;
+
     private enum ExportType
     {
         Csv,
@@ -66,15 +78,28 @@
     protected override async Task OnInitializedAsync()
     {
         await base.OnInitializedAsync();
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["PageTitle"] });
+        
+        // Cache localized strings for performance
+        _pageTitle = Localizer["PageTitle"];
+        _pageDescription = Localizer["PageDescription"];
+        _importSectionTitle = Localizer["ImportSectionTitle"];
+        _importSectionDescription = Localizer["ImportSectionDescription"];
+        _exportSectionTitle = Localizer["ExportSectionTitle"];
+        _exportSectionDescription = Localizer["ExportSectionDescription"];
+        _exportCsvButton = Localizer["ExportCsvButton"];
+        _exportSqliteButton = Localizer["ExportSqliteButton"];
+        _exportWarningMessage = Localizer["ExportWarningMessage"];
+        _exportConfirmTitle = Localizer["ExportConfirmTitle"];
+        
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _pageTitle });
     }
 
     private async Task ShowExportConfirmation(ExportType exportType)
     {
         _currentExportType = exportType;
-        var confirmMessage = Localizer["ExportWarningMessage"];
+        var confirmMessage = _exportWarningMessage;
 
-        var result = await ConfirmModalService.ShowConfirmation(Localizer["ExportConfirmTitle"], confirmMessage, SharedLocalizer["Confirm"], SharedLocalizer["Cancel"]);
+        var result = await ConfirmModalService.ShowConfirmation(_exportConfirmTitle, confirmMessage, SharedLocalizer["Confirm"], SharedLocalizer["Cancel"]);
         if (!result)
         {
             return;
diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/ChangePassword.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/ChangePassword.razor
index 9e0a642cf..2547d3c3a 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/ChangePassword.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/ChangePassword.razor
@@ -9,13 +9,13 @@
 @inherits MainBase
 @inject HttpClient Http
 
-<LayoutPageTitle>@Localizer["PageTitle"]</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 <div class="grid grid-cols-1 px-4 pt-6 xl:grid-cols-3 xl:gap-4 dark:bg-gray-900">
     <div class="mb-4 col-span-full xl:mb-2">
         <Breadcrumb BreadcrumbItems="BreadcrumbItems"/>
-        <H1>@Localizer["PageTitle"]</H1>
-        <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">@Localizer["PageDescription"]</p>
+        <H1>@_pageTitle</H1>
+        <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">@_pageDescription</p>
     </div>
 </div>
 
@@ -31,21 +31,21 @@ else
             <ValidationSummary />
 
             <div>
-                <label for="currentPassword" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["CurrentPasswordLabel"]</label>
+                <label for="currentPassword" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_currentPasswordLabel</label>
                 <InputText type="password" id="currentPassword" @bind-Value="PasswordChangeFormModel.CurrentPassword"
                            class="bg-gray-50 border border-gray-300 text-gray-900 sm:text-sm rounded-lg focus:ring-primary-500 focus:border-primary-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500"
                            required />
             </div>
 
             <div>
-                <label for="newPassword" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["NewPasswordLabel"]</label>
+                <label for="newPassword" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_newPasswordLabel</label>
                 <InputText type="password" id="newPassword" @bind-Value="PasswordChangeFormModel.NewPassword"
                            class="bg-gray-50 border border-gray-300 text-gray-900 sm:text-sm rounded-lg focus:ring-primary-500 focus:border-primary-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500"
                            required />
             </div>
 
             <div>
-                <label for="newPasswordConfirm" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["ConfirmNewPasswordLabel"]</label>
+                <label for="newPasswordConfirm" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_confirmNewPasswordLabel</label>
                 <InputText type="password" id="newPasswordConfirm" @bind-Value="PasswordChangeFormModel.NewPasswordConfirm"
                            class="bg-gray-50 border border-gray-300 text-gray-900 sm:text-sm rounded-lg focus:ring-primary-500 focus:border-primary-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500"
                            required />
@@ -53,7 +53,7 @@ else
 
             <button type="submit"
                     class="w-full bg-primary-500 text-white py-2 px-4 rounded-md hover:bg-primary-600 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 transition duration-150 ease-in-out">
-                @Localizer["ChangePasswordButton"]
+                @_changePasswordButton
             </button>
         </EditForm>
     </div>
@@ -70,8 +70,24 @@ else
     /// </summary>
     private PasswordChangeFormModel PasswordChangeFormModel { get; set; } = new();
 
-    private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Pages.Settings.Security.ChangePassword", "AliasVault.Client");
-    private IStringLocalizer ApiErrorLocalizer => LocalizerFactory.Create("ApiErrors", "AliasVault.Client");
+    private IStringLocalizer? _localizer;
+    private IStringLocalizer Localizer => _localizer ??= LocalizerFactory.Create("Components.Main.Pages.Settings.Security.ChangePassword", "AliasVault.Client");
+    private IStringLocalizer? _apiErrorLocalizer;
+    private IStringLocalizer ApiErrorLocalizer => _apiErrorLocalizer ??= LocalizerFactory.Create("ApiErrors", "AliasVault.Client");
+
+    // Cached localized strings for performance
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _breadcrumbSecuritySettings = string.Empty;
+    private string _breadcrumbChangePassword = string.Empty;
+    private string _currentPasswordLabel = string.Empty;
+    private string _newPasswordLabel = string.Empty;
+    private string _confirmNewPasswordLabel = string.Empty;
+    private string _changePasswordButton = string.Empty;
+    private string _failedToInitiatePasswordChange = string.Empty;
+    private string _changingPasswordMessage = string.Empty;
+    private string _failedToChangePassword = string.Empty;
+    private string _passwordChangedSuccessfully = string.Empty;
 
     /// <summary>
     /// Gets or sets the current user's password salt.
@@ -101,8 +117,22 @@ else
     {
         await base.OnInitializedAsync();
 
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbSecuritySettings"], Url = "/settings/security" });
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbChangePassword"] });
+        // Cache localized strings for performance
+        _pageTitle = Localizer["PageTitle"];
+        _pageDescription = Localizer["PageDescription"];
+        _breadcrumbSecuritySettings = Localizer["BreadcrumbSecuritySettings"];
+        _breadcrumbChangePassword = Localizer["BreadcrumbChangePassword"];
+        _currentPasswordLabel = Localizer["CurrentPasswordLabel"];
+        _newPasswordLabel = Localizer["NewPasswordLabel"];
+        _confirmNewPasswordLabel = Localizer["ConfirmNewPasswordLabel"];
+        _changePasswordButton = Localizer["ChangePasswordButton"];
+        _failedToInitiatePasswordChange = Localizer["FailedToInitiatePasswordChange"];
+        _changingPasswordMessage = Localizer["ChangingPasswordMessage"];
+        _failedToChangePassword = Localizer["FailedToChangePassword"];
+        _passwordChangedSuccessfully = Localizer["PasswordChangedSuccessfully"];
+
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbSecuritySettings, Url = "/settings/security" });
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbChangePassword });
     }
 
     /// <inheritdoc />
@@ -131,7 +161,7 @@ else
 
         if (response == null)
         {
-            GlobalNotificationService.AddErrorMessage(Localizer["FailedToInitiatePasswordChange"], true);
+            GlobalNotificationService.AddErrorMessage(_failedToInitiatePasswordChange, true);
             IsLoading = false;
             StateHasChanged();
             return;
@@ -148,7 +178,7 @@ else
     /// </summary>
     private async Task InitiatePasswordChange()
     {
-        GlobalLoadingSpinner.Show(Localizer["ChangingPasswordMessage"]);
+        GlobalLoadingSpinner.Show(_changingPasswordMessage);
         GlobalNotificationService.ClearMessages();
         StateHasChanged();
 
@@ -238,7 +268,7 @@ else
         }
         catch
         {
-            GlobalNotificationService.AddErrorMessage(Localizer["FailedToChangePassword"], true);
+            GlobalNotificationService.AddErrorMessage(_failedToChangePassword, true);
 
             // Set currentPasswordHash back to original, so we're back to the original state.
             await AuthService.StoreEncryptionKeyAsync(backupPasswordHash);
@@ -249,7 +279,7 @@ else
         }
 
         // Set success message.
-        GlobalNotificationService.AddSuccessMessage(Localizer["PasswordChangedSuccessfully"], true);
+        GlobalNotificationService.AddSuccessMessage(_passwordChangedSuccessfully, true);
 
         // Get the new password ephemeral and salt from the server, which is required if the usre
         // wants to change the password again.
diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/DeleteAccount.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/DeleteAccount.razor
index c349141cf..17eb90100 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/DeleteAccount.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/DeleteAccount.razor
@@ -10,12 +10,12 @@
 @using AliasVault.Client.Resources
 @inject HttpClient Http
 
-<LayoutPageTitle>@Localizer["PageTitle"]</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 <div class="grid grid-cols-1 px-4 pt-6 xl:grid-cols-3 xl:gap-4 dark:bg-gray-900">
     <div class="mb-4 col-span-full xl:mb-2">
         <Breadcrumb BreadcrumbItems="BreadcrumbItems"/>
-        <H1>@Localizer["PageTitle"]</H1>
+        <H1>@_pageTitle</H1>
     </div>
 </div>
 
@@ -23,25 +23,25 @@
     @if (!_showPasswordConfirm)
     {
         <div class="mb-6">
-            <MessageWarning Message="@Localizer["PermanentActionWarning"]" />
+            <MessageWarning Message="@_permanentActionWarning" />
 
             <div class="mt-4 mb-6 text-gray-600 dark:text-gray-400">
-                <p class="mb-2">@Localizer["PleaseNote"]</p>
+                <p class="mb-2">@_pleaseNote</p>
                 <ul class="list-disc list-inside space-y-2">
-                    <li>@Localizer["VaultsDeletedNote"]</li>
-                    <li>@Localizer["EmailAliasesOrphanedNote"]</li>
-                    <li>@Localizer["AccountCannotBeRecoveredNote"]</li>
+                    <li>@_vaultsDeletedNote</li>
+                    <li>@_emailAliasesOrphanedNote</li>
+                    <li>@_accountCannotBeRecoveredNote</li>
                 </ul>
             </div>
 
             <EditForm Model="@_usernameModel" OnSubmit="@ConfirmUsername">
                 <div class="mb-4">
-                    <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["ConfirmUsernameLabel"]</label>
+                    <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_confirmUsernameLabel</label>
                     <InputText id="username" @bind-Value="_usernameModel.Username" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-primary-500 focus:border-primary-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" />
                 </div>
 
                 <div class="flex space-x-3">
-                    <Button Type="submit" Color="danger">@Localizer["ContinueWithAccountDeletion"]</Button>
+                    <Button Type="submit" Color="danger">@_continueWithAccountDeletion</Button>
                     <Button Type="button" Color="secondary" OnClick="Cancel">Cancel</Button>
                 </div>
             </EditForm>
@@ -50,12 +50,12 @@
     else
     {
         <div class="mb-6">
-            <MessageWarning Message="@Localizer["FinalWarning"]" />
+            <MessageWarning Message="@_finalWarning" />
 
             <div class="mt-4 mb-6 text-gray-600 dark:text-gray-400">
-                <p class="mb-2">@Localizer["PleaseNote"]</p>
+                <p class="mb-2">@_pleaseNote</p>
                 <ul class="list-disc list-inside space-y-2">
-                    <li>@Localizer["DeletionIrreversibleNote"]</li>
+                    <li>@_deletionIrreversibleNote</li>
                 </ul>
             </div>
 
@@ -64,12 +64,12 @@
                 <ValidationSummary />
 
                 <div class="mb-4">
-                    <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@Localizer["EnterPasswordLabel"]</label>
+                    <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">@_enterPasswordLabel</label>
                     <InputText id="password" type="password" @bind-Value="_passwordModel.Password" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-primary-500 focus:border-primary-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" />
                 </div>
 
                 <div class="flex space-x-3">
-                    <Button Type="submit" Color="danger">@Localizer["DeleteMyAccount"]</Button>
+                    <Button Type="submit" Color="danger">@_deleteMyAccount</Button>
                     <Button Type="button" Color="secondary" OnClick="Cancel">Cancel</Button>
                 </div>
             </EditForm>
@@ -88,8 +88,30 @@
     /// </summary>
     private readonly DeleteAccountPasswordModel _passwordModel = new();
 
-    private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Pages.Settings.Security.DeleteAccount", "AliasVault.Client");
-    private IStringLocalizer ApiErrorLocalizer => LocalizerFactory.Create("ApiErrors", "AliasVault.Client");
+    private IStringLocalizer? _localizer;
+    private IStringLocalizer Localizer => _localizer ??= LocalizerFactory.Create("Components.Main.Pages.Settings.Security.DeleteAccount", "AliasVault.Client");
+    private IStringLocalizer? _apiErrorLocalizer;
+    private IStringLocalizer ApiErrorLocalizer => _apiErrorLocalizer ??= LocalizerFactory.Create("ApiErrors", "AliasVault.Client");
+
+    // Cached localized strings for performance
+    private string _pageTitle = string.Empty;
+    private string _breadcrumbSecuritySettings = string.Empty;
+    private string _breadcrumbDeleteAccount = string.Empty;
+    private string _permanentActionWarning = string.Empty;
+    private string _pleaseNote = string.Empty;
+    private string _vaultsDeletedNote = string.Empty;
+    private string _emailAliasesOrphanedNote = string.Empty;
+    private string _accountCannotBeRecoveredNote = string.Empty;
+    private string _confirmUsernameLabel = string.Empty;
+    private string _continueWithAccountDeletion = string.Empty;
+    private string _finalWarning = string.Empty;
+    private string _deletionIrreversibleNote = string.Empty;
+    private string _enterPasswordLabel = string.Empty;
+    private string _deleteMyAccount = string.Empty;
+    private string _usernameRequired = string.Empty;
+    private string _usernameDoesNotMatch = string.Empty;
+    private string _deletingAccountMessage = string.Empty;
+    private string _errorProcessingRequest = string.Empty;
 
     /// <summary>
     /// Whether to show the password confirmation step.
@@ -111,8 +133,28 @@
     {
         await base.OnInitializedAsync();
 
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbSecuritySettings"], Url = "/settings/security" });
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbDeleteAccount"] });
+        // Cache localized strings for performance
+        _pageTitle = Localizer["PageTitle"];
+        _breadcrumbSecuritySettings = Localizer["BreadcrumbSecuritySettings"];
+        _breadcrumbDeleteAccount = Localizer["BreadcrumbDeleteAccount"];
+        _permanentActionWarning = Localizer["PermanentActionWarning"];
+        _pleaseNote = Localizer["PleaseNote"];
+        _vaultsDeletedNote = Localizer["VaultsDeletedNote"];
+        _emailAliasesOrphanedNote = Localizer["EmailAliasesOrphanedNote"];
+        _accountCannotBeRecoveredNote = Localizer["AccountCannotBeRecoveredNote"];
+        _confirmUsernameLabel = Localizer["ConfirmUsernameLabel"];
+        _continueWithAccountDeletion = Localizer["ContinueWithAccountDeletion"];
+        _finalWarning = Localizer["FinalWarning"];
+        _deletionIrreversibleNote = Localizer["DeletionIrreversibleNote"];
+        _enterPasswordLabel = Localizer["EnterPasswordLabel"];
+        _deleteMyAccount = Localizer["DeleteMyAccount"];
+        _usernameRequired = Localizer["UsernameRequired"];
+        _usernameDoesNotMatch = Localizer["UsernameDoesNotMatch"];
+        _deletingAccountMessage = Localizer["DeletingAccountMessage"];
+        _errorProcessingRequest = Localizer["ErrorProcessingRequest"];
+
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbSecuritySettings, Url = "/settings/security" });
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbDeleteAccount });
     }
 
     /// <summary>
@@ -124,7 +166,7 @@
 
         if (string.IsNullOrEmpty(_usernameModel.Username))
         {
-            GlobalNotificationService.AddErrorMessage(Localizer["UsernameRequired"], true);
+            GlobalNotificationService.AddErrorMessage(_usernameRequired, true);
             return;
         }
 
@@ -132,7 +174,7 @@
         var usernameMatches = string.Equals(_usernameModel.Username.Trim(), username.Trim(), StringComparison.OrdinalIgnoreCase);
         if (!usernameMatches)
         {
-            GlobalNotificationService.AddErrorMessage(Localizer["UsernameDoesNotMatch"], true);
+            GlobalNotificationService.AddErrorMessage(_usernameDoesNotMatch, true);
             return;
         }
 
@@ -145,7 +187,7 @@
     /// </summary>
     private async Task DeleteAccountConfirmed()
     {
-        GlobalLoadingSpinner.Show(Localizer["DeletingAccountMessage"]);
+        GlobalLoadingSpinner.Show(_deletingAccountMessage);
         GlobalNotificationService.ClearMessages();
 
         try
@@ -167,7 +209,7 @@
             var loginResponse = JsonSerializer.Deserialize<LoginInitiateResponse>(responseContent);
             if (loginResponse == null)
             {
-                GlobalNotificationService.AddErrorMessage(Localizer["ErrorProcessingRequest"], true);
+                GlobalNotificationService.AddErrorMessage(_errorProcessingRequest, true);
                 return;
             }
 
diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Disable2Fa.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Disable2Fa.razor
index 21991adff..9d00ce628 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Disable2Fa.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Disable2Fa.razor
@@ -1,8 +1,9 @@
 @page "/settings/security/disable-2fa"
 @inherits MainBase
 @inject HttpClient Http
+@using Microsoft.Extensions.Localization
 
-<LayoutPageTitle>Disable two-factor authentication</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 @if (IsLoading)
 {
@@ -13,17 +14,17 @@ else
     <div class="grid grid-cols-1 px-4 pt-6 xl:grid-cols-3 xl:gap-4 dark:bg-gray-900">
         <div class="mb-4 col-span-full xl:mb-2">
             <Breadcrumb BreadcrumbItems="BreadcrumbItems"/>
-            <H1>Disable two-factor authentication</H1>
-            <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">Disabling two-factor authentication means you will be able to login with only your password.</p>
+            <H1>@_pageTitle</H1>
+            <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">@_pageDescription</p>
         </div>
     </div>
 
     <div class="p-4 mb-4  mx-4 bg-white border border-gray-200 rounded-lg shadow-sm dark:border-gray-700 sm:p-6 dark:bg-gray-800">
-        <AlertMessageError Message="Please note: after disabling two-factor authentication any configured authenticator app(s) will stop working. When you want to re-enable two-factor authentication you will have to configure the authenticator app(s) again." />
-        <div class="mb-3 text-sm text-gray-600 dark:text-gray-400">Two factor authentication is currently enabled. Disable it in order to be able to access your vault with your password only.</div>
+        <AlertMessageError Message="@_alertMessage" />
+        <div class="mb-3 text-sm text-gray-600 dark:text-gray-400">@_descriptionText</div>
         <button @onclick="DisableTwoFactor"
                 class="bg-red-500 text-white py-2 px-4 rounded-md hover:bg-red-600 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2 transition duration-150 ease-in-out">
-            Confirm Disable Two-Factor Authentication
+            @_confirmDisableButton
         </button>
     </div>
 }
@@ -31,13 +32,40 @@ else
 @code {
     private bool IsLoading { get; set; } = true;
 
+    private IStringLocalizer? _localizer;
+    private IStringLocalizer Localizer => _localizer ??= LocalizerFactory.Create("Components.Main.Pages.Settings.Security.Disable2Fa", "AliasVault.Client");
+
+    // Cached localized strings for performance
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _breadcrumbSecuritySettings = string.Empty;
+    private string _breadcrumbDisable2Fa = string.Empty;
+    private string _alertMessage = string.Empty;
+    private string _descriptionText = string.Empty;
+    private string _confirmDisableButton = string.Empty;
+    private string _twoFactorNotEnabled = string.Empty;
+    private string _twoFactorDisabledSuccess = string.Empty;
+    private string _failedToDisable2Fa = string.Empty;
+
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
         await base.OnInitializedAsync();
 
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = "Security settings", Url = "/settings/security" });
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = "Disable two-factor authentication" });
+        // Cache localized strings for performance
+        _pageTitle = Localizer["PageTitle"];
+        _pageDescription = Localizer["PageDescription"];
+        _breadcrumbSecuritySettings = Localizer["BreadcrumbSecuritySettings"];
+        _breadcrumbDisable2Fa = Localizer["BreadcrumbDisable2Fa"];
+        _alertMessage = Localizer["AlertMessage"];
+        _descriptionText = Localizer["DescriptionText"];
+        _confirmDisableButton = Localizer["ConfirmDisableButton"];
+        _twoFactorNotEnabled = Localizer["TwoFactorNotEnabled"];
+        _twoFactorDisabledSuccess = Localizer["TwoFactorDisabledSuccess"];
+        _failedToDisable2Fa = Localizer["FailedToDisable2Fa"];
+
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbSecuritySettings, Url = "/settings/security" });
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbDisable2Fa });
     }
 
     /// <inheritdoc />
@@ -51,7 +79,7 @@ else
             var response = await Http.GetFromJsonAsync<TwoFactorEnabledResult>("v1/TwoFactorAuth/status");
             if (response is not null && !response.TwoFactorEnabled)
             {
-                GlobalNotificationService.AddErrorMessage("Two-factor authentication is not enabled.");
+                GlobalNotificationService.AddErrorMessage(_twoFactorNotEnabled);
                 NavigationManager.NavigateTo("/settings/security");
                 return;
             }
@@ -66,13 +94,13 @@ else
         var response = await Http.PostAsync("v1/TwoFactorAuth/disable", null);
         if (response.IsSuccessStatusCode)
         {
-            GlobalNotificationService.AddSuccessMessage("Two-factor authentication is now successfully disabled.");
+            GlobalNotificationService.AddSuccessMessage(_twoFactorDisabledSuccess);
             NavigationManager.NavigateTo("/settings/security");
             return;
         }
 
         // Handle error
-        GlobalNotificationService.AddErrorMessage("Failed to disable two-factor authentication.", true);
+        GlobalNotificationService.AddErrorMessage(_failedToDisable2Fa, true);
         StateHasChanged();
     }
 
diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Enable2Fa.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Enable2Fa.razor
index b15e5dc9f..c1aa44883 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Enable2Fa.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Enable2Fa.razor
@@ -4,13 +4,13 @@
 @inherits MainBase
 @inject HttpClient Http
 
-<LayoutPageTitle>@Localizer["PageTitle"]</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 <div class="grid grid-cols-1 px-4 pt-6 xl:grid-cols-3 xl:gap-4 dark:bg-gray-900">
     <div class="mb-4 col-span-full xl:mb-2">
         <Breadcrumb BreadcrumbItems="BreadcrumbItems"/>
-        <H1>@Localizer["PageTitle"]</H1>
-        <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">@Localizer["PageDescription"]</p>
+        <H1>@_pageTitle</H1>
+        <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">@_pageDescription</p>
     </div>
 </div>
 
@@ -31,7 +31,7 @@ else
             </div>
 
             <p class="text-sm text-gray-600 text-center">
-                @Localizer["QrCodeInstructions"]
+                @_qrCodeInstructions
             </p>
             <div class="text-lg font-mono text-center bg-gray-100 p-2 rounded" id="authenticator-secret">@Secret</div>
 
@@ -39,11 +39,11 @@ else
                 <div>
                     <InputText id="verificationCode" @bind-Value="VerifyModel.Code"
                                class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500"
-                               placeholder="@Localizer["VerificationCodePlaceholder"]"/>
+                               placeholder="@_verificationCodePlaceholder"/>
                 </div>
                 <button type="submit"
                         class="w-full bg-primary-500 text-white py-2 px-4 rounded-md hover:bg-primary-600 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 transition duration-150 ease-in-out">
-                    @Localizer["VerifyAndEnableButton"]
+                    @_verifyAndEnableButton
                 </button>
             </EditForm>
         </div>
@@ -57,15 +57,38 @@ else
     private List<string>? RecoveryCodes { get; set; }
     private readonly VerificationModel VerifyModel = new();
 
-    private IStringLocalizer Localizer => LocalizerFactory.Create("Components.Main.Pages.Settings.Security.Enable2Fa", "AliasVault.Client");
+    private IStringLocalizer? _localizer;
+    private IStringLocalizer Localizer => _localizer ??= LocalizerFactory.Create("Components.Main.Pages.Settings.Security.Enable2Fa", "AliasVault.Client");
+    
+    // Cached localized strings
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _breadcrumbSecuritySettings = string.Empty;
+    private string _breadcrumbEnable2Fa = string.Empty;
+    private string _qrCodeInstructions = string.Empty;
+    private string _verificationCodePlaceholder = string.Empty;
+    private string _verifyAndEnableButton = string.Empty;
+    private string _twoFactorEnabledSuccess = string.Empty;
+    private string _failedToEnable2Fa = string.Empty;
 
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
         await base.OnInitializedAsync();
 
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbSecuritySettings"], Url = "/settings/security" });
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbEnable2Fa"] });
+        // Initialize localized strings once
+        _pageTitle = Localizer["PageTitle"];
+        _pageDescription = Localizer["PageDescription"];
+        _breadcrumbSecuritySettings = Localizer["BreadcrumbSecuritySettings"];
+        _breadcrumbEnable2Fa = Localizer["BreadcrumbEnable2Fa"];
+        _qrCodeInstructions = Localizer["QrCodeInstructions"];
+        _verificationCodePlaceholder = Localizer["VerificationCodePlaceholder"];
+        _verifyAndEnableButton = Localizer["VerifyAndEnableButton"];
+        _twoFactorEnabledSuccess = Localizer["TwoFactorEnabledSuccess"];
+        _failedToEnable2Fa = Localizer["FailedToEnable2Fa"];
+        
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbSecuritySettings, Url = "/settings/security" });
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbEnable2Fa });
     }
 
     /// <inheritdoc />
@@ -110,7 +133,7 @@ else
 
             if (result != null)
             {
-                GlobalNotificationService.AddSuccessMessage(Localizer["TwoFactorEnabledSuccess"], true);
+                GlobalNotificationService.AddSuccessMessage(_twoFactorEnabledSuccess, true);
 
                 // Show recovery codes.
                 RecoveryCodes = result.RecoveryCodes;
@@ -120,7 +143,7 @@ else
             }
         }
 
-        GlobalNotificationService.AddErrorMessage(Localizer["FailedToEnable2Fa"], true);
+        GlobalNotificationService.AddErrorMessage(_failedToEnable2Fa, true);
         StateHasChanged();
     }
 
diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Security.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Security.razor
index cdd10e7e2..813755d69 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Security.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/Security/Security.razor
@@ -3,14 +3,14 @@
 @inherits MainBase
 @using Microsoft.Extensions.Localization
 
-<LayoutPageTitle>@Localizer["PageTitle"]</LayoutPageTitle>
+<LayoutPageTitle>@_pageTitle</LayoutPageTitle>
 
 <PageHeader
     BreadcrumbItems="@BreadcrumbItems"
-    Title="@Localizer["PageTitle"]"
-    Description="@Localizer["PageDescription"]">
+    Title="@_pageTitle"
+    Description="@_pageDescription">
     <CustomActions>
-        <RefreshButton OnClick="LoadData" ButtonText="@Localizer["RefreshButton"]" />
+        <RefreshButton OnClick="LoadData" ButtonText="@_refreshButton" />
     </CustomActions>
 </PageHeader>
 
@@ -23,6 +23,12 @@
 
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Pages.Main.Settings.Security.Security", "AliasVault.Client");
+
+    // Cached localized strings for performance
+    private string _pageTitle = string.Empty;
+    private string _pageDescription = string.Empty;
+    private string _refreshButton = string.Empty;
+    private string _breadcrumbTitle = string.Empty;
     private TwoFactorAuthenticationSection? TwoFactorSection;
     private QuickVaultUnlockSection? QuickVaultUnlockSection;
     private ActiveSessionsSection? SessionsSection;
@@ -33,7 +39,13 @@
     {
         await base.OnInitializedAsync();
 
-        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = Localizer["BreadcrumbTitle"] });
+        // Cache localized strings for performance
+        _pageTitle = Localizer["PageTitle"];
+        _pageDescription = Localizer["PageDescription"];
+        _refreshButton = Localizer["RefreshButton"];
+        _breadcrumbTitle = Localizer["BreadcrumbTitle"];
+
+        BreadcrumbItems.Add(new BreadcrumbItem { DisplayName = _breadcrumbTitle });
     }
 
     /// <inheritdoc />
diff --git a/apps/server/AliasVault.Client/Main/Pages/Welcome.razor b/apps/server/AliasVault.Client/Main/Pages/Welcome.razor
index 487d86a1c..f4996190a 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Welcome.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Welcome.razor
@@ -26,7 +26,7 @@
                     case TutorialStep.Welcome:
                         <div class="space-y-4">
                             <p class="text-gray-600 dark:text-gray-400">
-                                @Localizer["WelcomeMessage"]
+                                @_welcomeMessage
                             </p>
                         </div>
                         break;
@@ -34,13 +34,13 @@
                     case TutorialStep.HowAliasVaultWorks:
                         <div class="space-y-4">
                             <p class="text-gray-600 dark:text-gray-400">
-                                @Localizer["HowItWorksIntro"]
+                                @_howItWorksIntro
                             </p>
                             <ol class="list-decimal list-inside space-y-2 text-gray-600 dark:text-gray-400">
-                                <li>@Localizer["HowItWorksStep1"]</li>
-                                <li>@Localizer["HowItWorksStep2"]</li>
-                                <li>@Localizer["HowItWorksStep3"]</li>
-                                <li>@Localizer["HowItWorksStep4"]</li>
+                                <li>@_howItWorksStep1</li>
+                                <li>@_howItWorksStep2</li>
+                                <li>@_howItWorksStep3</li>
+                                <li>@_howItWorksStep4</li>
                             </ol>
                         </div>
                         break;
@@ -49,18 +49,18 @@
                         <div class="space-y-4">
                             <div class="space-y-3">
                                 <div class="p-4 bg-gray-50 dark:bg-gray-700 rounded-lg">
-                                    <h4 class="font-semibold text-gray-900 dark:text-white">@Localizer["MasterPasswordTipTitle"]</h4>
+                                    <h4 class="font-semibold text-gray-900 dark:text-white">@_masterPasswordTipTitle</h4>
                                     <p class="text-gray-600 dark:text-gray-400">
-                                        @Localizer["MasterPasswordTipContent"]
+                                        @_masterPasswordTipContent
                                     </p>
                                 </div>
                                 <div class="p-4 bg-gray-50 dark:bg-gray-700 rounded-lg">
-                                    <h4 class="font-semibold text-gray-900 dark:text-white">@Localizer["TwoFactorTipTitle"]</h4>
-                                    <p class="text-gray-600 dark:text-gray-400">@Localizer["TwoFactorTipContent"]</p>
+                                    <h4 class="font-semibold text-gray-900 dark:text-white">@_twoFactorTipTitle</h4>
+                                    <p class="text-gray-600 dark:text-gray-400">@_twoFactorTipContent</p>
                                 </div>
                                 <div class="p-4 bg-gray-50 dark:bg-gray-700 rounded-lg">
-                                    <h4 class="font-semibold text-gray-900 dark:text-white">@Localizer["ExtensionsAppsTipTitle"]</h4>
-                                    <p class="text-gray-600 dark:text-gray-400 mb-4">@Localizer["ExtensionsAppsTipContent"]</p>
+                                    <h4 class="font-semibold text-gray-900 dark:text-white">@_extensionsAppsTipTitle</h4>
+                                    <p class="text-gray-600 dark:text-gray-400 mb-4">@_extensionsAppsTipContent</p>
                                     <div class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-5 gap-3">
                                         @foreach (var extension in AliasVault.Shared.Core.BrowserExtensions.Constants.Extensions.Where(x => x.Key != BrowserType.Unknown).Select(x => x.Value))
                                         {
@@ -80,7 +80,7 @@
                                                 <div class="flex flex-col items-center p-3 rounded-lg bg-gray-200 dark:bg-gray-600">
                                                     <img src="@extension.IconPath" alt="@extension.Name" class="w-8 h-8 mb-2 opacity-50">
                                                     <span class="text-xs text-gray-500 dark:text-gray-400">
-                                                        @Localizer["ComingSoonLabel"]
+                                                        @_comingSoonLabel
                                                     </span>
                                                 </div>
                                             }
@@ -94,7 +94,7 @@
                                                    class="flex flex-col items-center p-3 rounded-lg bg-gray-200 dark:bg-gray-600 hover:bg-gray-300 dark:hover:bg-gray-500 transition-colors">
                                                     <img src="@app.IconPath" alt="@app.Name" class="w-8 h-8 mb-2">
                                                     <span class="text-xs text-primary-600 hover:text-primary-700 dark:text-primary-400 dark:hover:text-primary-300">
-                                                        @Localizer["DownloadForPrefix"] @app.Name
+                                                        @_downloadForPrefix @app.Name
                                                     </span>
                                                 </a>
                                             }
@@ -103,7 +103,7 @@
                                                 <div class="flex flex-col items-center p-3 rounded-lg bg-gray-200 dark:bg-gray-600">
                                                     <img src="@app.IconPath" alt="@app.Name" class="w-8 h-8 mb-2 opacity-50">
                                                     <span class="text-xs text-gray-500 dark:text-gray-400">
-                                                        @app.Name @Localizer["SoonSuffix"]
+                                                        @app.Name @_soonSuffix
                                                     </span>
                                                 </div>
                                             }
@@ -116,14 +116,14 @@
 
                     case TutorialStep.CreateFirstIdentity:
                         <div class="space-y-4">
-                            <h3 class="text-2xl font-bold text-gray-900 dark:text-white">@Localizer["ReadyToStartTitle"]</h3>
+                            <h3 class="text-2xl font-bold text-gray-900 dark:text-white">@_readyToStartTitle</h3>
                             <p class="text-gray-600 dark:text-gray-400">
-                                @Localizer["ReadyToStartMessage"]
+                                @_readyToStartMessage
                             </p>
                             <div class="mt-4">
                                 <button @onclick="CreateFirstIdentity"
                                         class="w-full bg-primary-600 hover:bg-primary-700 text-white font-semibold py-3 px-4 rounded-lg transition duration-300">
-                                    @Localizer["CreateFirstIdentityButton"]
+                                    @_createFirstIdentityButton
                                 </button>
                             </div>
                         </div>
@@ -136,14 +136,14 @@
                 {
                     <button @onclick="GoNext"
                             class="w-full py-3 px-4 bg-primary-600 hover:bg-primary-700 text-white font-semibold rounded-lg transition duration-300">
-                        @Localizer["ContinueButton"]
+                        @_continueButton
                     </button>
                 }
                 else
                 {
                     <button @onclick="FinishTutorial"
                             class="w-full py-3 px-4 bg-green-600 hover:bg-green-700 text-white font-semibold rounded-lg transition duration-300">
-                        @Localizer["GetStartedButton"]
+                        @_getStartedButton
                     </button>
                 }
             </div>
@@ -154,6 +154,34 @@
 @code {
     private IStringLocalizer Localizer => LocalizerFactory.Create("Pages.Main.Welcome", "AliasVault.Client");
 
+    // Cached localized strings for performance
+    private string _welcomeStepTitle = string.Empty;
+    private string _howAliasVaultWorksStepTitle = string.Empty;
+    private string _tipsStepTitle = string.Empty;
+    private string _getStartedStepTitle = string.Empty;
+    private string _tutorialStepTitle = string.Empty;
+    private string _welcomeMessage = string.Empty;
+    private string _howItWorksIntro = string.Empty;
+    private string _howItWorksStep1 = string.Empty;
+    private string _howItWorksStep2 = string.Empty;
+    private string _howItWorksStep3 = string.Empty;
+    private string _howItWorksStep4 = string.Empty;
+    private string _masterPasswordTipTitle = string.Empty;
+    private string _masterPasswordTipContent = string.Empty;
+    private string _twoFactorTipTitle = string.Empty;
+    private string _twoFactorTipContent = string.Empty;
+    private string _extensionsAppsTipTitle = string.Empty;
+    private string _extensionsAppsTipContent = string.Empty;
+    private string _comingSoonLabel = string.Empty;
+    private string _downloadForPrefix = string.Empty;
+    private string _soonSuffix = string.Empty;
+    private string _readyToStartTitle = string.Empty;
+    private string _readyToStartMessage = string.Empty;
+    private string _createFirstIdentityButton = string.Empty;
+    private string _continueButton = string.Empty;
+    private string _getStartedButton = string.Empty;
+    private string _finishingTutorialMessage = string.Empty;
+
     private TutorialStep _currentStep = TutorialStep.Welcome;
 
     private enum TutorialStep
@@ -168,11 +196,11 @@
     {
         return step switch
         {
-            TutorialStep.Welcome => Localizer["WelcomeStepTitle"],
-            TutorialStep.HowAliasVaultWorks => Localizer["HowAliasVaultWorksStepTitle"],
-            TutorialStep.Tips => Localizer["TipsStepTitle"],
-            TutorialStep.CreateFirstIdentity => Localizer["GetStartedStepTitle"],
-            _ => Localizer["TutorialStepTitle"]
+            TutorialStep.Welcome => _welcomeStepTitle,
+            TutorialStep.HowAliasVaultWorks => _howAliasVaultWorksStepTitle,
+            TutorialStep.Tips => _tipsStepTitle,
+            TutorialStep.CreateFirstIdentity => _getStartedStepTitle,
+            _ => _tutorialStepTitle
         };
     }
 
@@ -181,6 +209,34 @@
     {
         await base.OnInitializedAsync();
 
+        // Cache localized strings for performance
+        _welcomeStepTitle = Localizer["WelcomeStepTitle"];
+        _howAliasVaultWorksStepTitle = Localizer["HowAliasVaultWorksStepTitle"];
+        _tipsStepTitle = Localizer["TipsStepTitle"];
+        _getStartedStepTitle = Localizer["GetStartedStepTitle"];
+        _tutorialStepTitle = Localizer["TutorialStepTitle"];
+        _welcomeMessage = Localizer["WelcomeMessage"];
+        _howItWorksIntro = Localizer["HowItWorksIntro"];
+        _howItWorksStep1 = Localizer["HowItWorksStep1"];
+        _howItWorksStep2 = Localizer["HowItWorksStep2"];
+        _howItWorksStep3 = Localizer["HowItWorksStep3"];
+        _howItWorksStep4 = Localizer["HowItWorksStep4"];
+        _masterPasswordTipTitle = Localizer["MasterPasswordTipTitle"];
+        _masterPasswordTipContent = Localizer["MasterPasswordTipContent"];
+        _twoFactorTipTitle = Localizer["TwoFactorTipTitle"];
+        _twoFactorTipContent = Localizer["TwoFactorTipContent"];
+        _extensionsAppsTipTitle = Localizer["ExtensionsAppsTipTitle"];
+        _extensionsAppsTipContent = Localizer["ExtensionsAppsTipContent"];
+        _comingSoonLabel = Localizer["ComingSoonLabel"];
+        _downloadForPrefix = Localizer["DownloadForPrefix"];
+        _soonSuffix = Localizer["SoonSuffix"];
+        _readyToStartTitle = Localizer["ReadyToStartTitle"];
+        _readyToStartMessage = Localizer["ReadyToStartMessage"];
+        _createFirstIdentityButton = Localizer["CreateFirstIdentityButton"];
+        _continueButton = Localizer["ContinueButton"];
+        _getStartedButton = Localizer["GetStartedButton"];
+        _finishingTutorialMessage = Localizer["FinishingTutorialMessage"];
+
         // If tutorial is already done, redirect to the home page.
         if (DbService.Settings.TutorialDone)
         {
@@ -208,7 +264,7 @@
 
     private async Task FinishTutorial()
     {
-        GlobalLoadingSpinner.Show(Localizer["FinishingTutorialMessage"]);
+        GlobalLoadingSpinner.Show(_finishingTutorialMessage);
         await DbService.Settings.SetTutorialDoneAsync(true);
         NavigationManager.NavigateTo("credentials");
         GlobalLoadingSpinner.Hide();