diff --git a/flutter/lib/mobile/pages/remote_page.dart b/flutter/lib/mobile/pages/remote_page.dart
index a1be9c009..fd0e007e2 100644
--- a/flutter/lib/mobile/pages/remote_page.dart
+++ b/flutter/lib/mobile/pages/remote_page.dart
@@ -269,14 +269,10 @@ class _RemotePageState extends State<RemotePage> with WidgetsBindingObserver {
     }
   }
 
-  Future<void> handleSoftKeyboardInput(String newValue) async {
+  // handle mobile virtual keyboard
+  void handleSoftKeyboardInput(String newValue) {
     if (isIOS) {
-      // fix: TextFormField onChanged event triggered multiple times when Korean input
-      // https://github.com/rustdesk/rustdesk/pull/9644
-      await Future.delayed(const Duration(milliseconds: 10));
-
-      if (newValue != _textController.text) return;
-      _handleIOSSoftKeyboardInput(_textController.text);
+      _handleIOSSoftKeyboardInput(newValue);
     } else {
       _handleNonIOSSoftKeyboardInput(newValue);
     }