diff --git a/crates/matrix-sdk-ui/src/room_list_service/state.rs b/crates/matrix-sdk-ui/src/room_list_service/state.rs
index 6816d2836..8bfff924e 100644
--- a/crates/matrix-sdk-ui/src/room_list_service/state.rs
+++ b/crates/matrix-sdk-ui/src/room_list_service/state.rs
@@ -133,7 +133,7 @@ struct SetAllRoomsListToGrowingSyncMode;
 
 /// Default `batch_size` for the growing sync-mode of the `ALL_ROOMS_LIST_NAME`
 /// list.
-pub const ALL_ROOMS_DEFAULT_GROWING_BATCH_SIZE: u32 = 200;
+pub const ALL_ROOMS_DEFAULT_GROWING_BATCH_SIZE: u32 = 100;
 
 #[async_trait]
 impl Action for SetAllRoomsListToGrowingSyncMode {
@@ -385,7 +385,7 @@ mod tests {
             sliding_sync
                 .on_list(ALL_ROOMS_LIST_NAME, |list| ready(matches!(
                     list.sync_mode(),
-                    SlidingSyncMode::Growing { batch_size: 200, .. }
+                    SlidingSyncMode::Growing { batch_size: 100, .. }
                 )))
                 .await,
             Some(true)
diff --git a/crates/matrix-sdk-ui/tests/integration/room_list_service.rs b/crates/matrix-sdk-ui/tests/integration/room_list_service.rs
index 6daf9a9c9..e9c4707e3 100644
--- a/crates/matrix-sdk-ui/tests/integration/room_list_service.rs
+++ b/crates/matrix-sdk-ui/tests/integration/room_list_service.rs
@@ -297,7 +297,7 @@ async fn test_sync_all_states() -> Result<(), Error> {
             "conn_id": "room-list",
             "lists": {
                 ALL_ROOMS: {
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     "ranges": [[0, 19]],
@@ -367,7 +367,7 @@ async fn test_sync_all_states() -> Result<(), Error> {
             "conn_id": "room-list",
             "lists": {
                 ALL_ROOMS: {
-                    "ranges": [[0, 399]],
+                    "ranges": [[0, 199]],
                 },
                 VISIBLE_ROOMS: {
                     "ranges": [[0, 19]],
@@ -408,7 +408,7 @@ async fn test_sync_all_states() -> Result<(), Error> {
             "conn_id": "room-list",
             "lists": {
                 ALL_ROOMS: {
-                    "ranges": [[0, 599]],
+                    "ranges": [[0, 299]],
                 },
                 VISIBLE_ROOMS: {
                     "ranges": [[0, 19]],
@@ -449,7 +449,7 @@ async fn test_sync_all_states() -> Result<(), Error> {
             "conn_id": "room-list",
             "lists": {
                 ALL_ROOMS: {
-                    "ranges": [[0, 799]],
+                    "ranges": [[0, 399]],
                 },
                 VISIBLE_ROOMS: {
                     "ranges": [[0, 19]],
@@ -654,7 +654,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "pos": "1",
             "lists": {
                 ALL_ROOMS: {
-                    "count": 410,
+                    "count": 210,
                 },
             },
             "rooms": {},
@@ -671,7 +671,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // In `SettingUp`, the sync-mode has changed to growing, with
                     // its initial range.
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     // Hello new list.
@@ -708,7 +708,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // In `Running`, the sync-mode is still growing, but the range
                     // hasn't been modified due to previous error.
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     // We have set a viewport, which reflects here.
@@ -724,7 +724,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "pos": "2",
             "lists": {
                 ALL_ROOMS: {
-                    "count": 410,
+                    "count": 210,
                 },
                 INVITES: {
                     "count": 30,
@@ -744,7 +744,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // In `Running`, the sync-mode is still growing, and the range
                     // has made progress.
-                    "ranges": [[0, 399]],
+                    "ranges": [[0, 199]],
                 },
                 VISIBLE_ROOMS: {
                     // Despites the error, the range is kept.
@@ -777,7 +777,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "lists": {
                 ALL_ROOMS: {
                     // Due to the error, the range is reset to its initial value.
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     // Despites the error, the range is kept.
@@ -793,7 +793,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "pos": "3",
             "lists": {
                 ALL_ROOMS: {
-                    "count": 410,
+                    "count": 210,
                 },
                 INVITES: {
                     "count": 4,
@@ -812,7 +812,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "lists": {
                 ALL_ROOMS: {
                     // No error. The range is making progress.
-                    "ranges": [[0, 399]],
+                    "ranges": [[0, 199]],
                 },
                 VISIBLE_ROOMS: {
                     // No error. The range is still here.
@@ -828,7 +828,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "pos": "4",
             "lists": {
                 ALL_ROOMS: {
-                    "count": 410,
+                    "count": 210,
                 },
             },
             "rooms": {},
@@ -845,7 +845,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // Range is making progress and is even reaching the maximum
                     // number of rooms.
-                    "ranges": [[0, 409]],
+                    "ranges": [[0, 209]],
                 },
                 VISIBLE_ROOMS: {
                     // The range is still here.
@@ -880,7 +880,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
                     // An error was received at the previous sync iteration.
                     // The list is still in growing sync-mode, but its range has
                     // been reset.
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     // The range is still here.
@@ -896,7 +896,7 @@ async fn test_sync_resumes_from_error() -> Result<(), Error> {
             "pos": "5",
             "lists": {
                 ALL_ROOMS: {
-                    "count": 410,
+                    "count": 210,
                 },
             },
             "rooms": {},
@@ -957,7 +957,7 @@ async fn test_sync_resumes_from_terminated() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // In `SettingUp`, the sync-mode has changed to growing, with
                     // its initial range.
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     // Hello new list.
@@ -1000,7 +1000,7 @@ async fn test_sync_resumes_from_terminated() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // In `Running`, the sync-mode is still growing, the previous termination
                     // didn't restart the whole growing.
-                    "ranges": [[0, 399]],
+                    "ranges": [[0, 199]],
                 },
                 VISIBLE_ROOMS: {
                     // We have set a viewport, which reflects here.
@@ -1043,7 +1043,7 @@ async fn test_sync_resumes_from_terminated() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // In `Running`, the sync-mode is still growing, the previous termination
                     // didn't restart the whole growing.
-                    "ranges": [[0, 599]],
+                    "ranges": [[0, 299]],
                 },
                 VISIBLE_ROOMS: {
                     // Despites the termination, the range is kept.
@@ -1078,7 +1078,7 @@ async fn test_sync_resumes_from_terminated() -> Result<(), Error> {
             "lists": {
                 ALL_ROOMS: {
                     // No termination.
-                    "ranges": [[0, 799]],
+                    "ranges": [[0, 399]],
                 },
                 VISIBLE_ROOMS: {
                     // No termination. The range is still here.
@@ -1118,7 +1118,7 @@ async fn test_sync_resumes_from_terminated() -> Result<(), Error> {
                 ALL_ROOMS: {
                     // The termination doesn't invalidate the range, we're still in the stable
                     // state.
-                    "ranges": [[0, 999]],
+                    "ranges": [[0, 499]],
                 },
                 VISIBLE_ROOMS: {
                     // The range is still here.
@@ -2388,7 +2388,7 @@ async fn test_input_viewport() -> Result<(), Error> {
         assert request >= {
             "lists": {
                 ALL_ROOMS: {
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     "ranges": [[0, 19]],
@@ -2425,7 +2425,7 @@ async fn test_input_viewport() -> Result<(), Error> {
         assert request >= {
             "lists": {
                 ALL_ROOMS: {
-                    "ranges": [[0, 199]],
+                    "ranges": [[0, 99]],
                 },
                 VISIBLE_ROOMS: {
                     "ranges": [[10, 15], [20, 25]],