diff --git a/flutter/lib/src/integrations/frames_tracking_integration.dart b/flutter/lib/src/integrations/frames_tracking_integration.dart
index b5be70a519..97ff45a1a2 100644
--- a/flutter/lib/src/integrations/frames_tracking_integration.dart
+++ b/flutter/lib/src/integrations/frames_tracking_integration.dart
@@ -15,9 +15,12 @@ class FramesTrackingIntegration implements Integration<SentryFlutterOptions> {
   SentryWidgetsBindingMixin? _widgetsBinding;
 
   @override
-  Future<void> call(Hub hub, SentryFlutterOptions options) async {
+  void call(Hub hub, SentryFlutterOptions options) {
     _options = options;
+    _initializeFramesTracking(options);
+  }
 
+  void _initializeFramesTracking(SentryFlutterOptions options) async {
     if (!options.enableFramesTracking) {
       return options.logger(SentryLevel.debug,
           '$FramesTrackingIntegration disabled: enableFramesTracking option is false');
diff --git a/flutter/lib/src/integrations/native_app_start_integration.dart b/flutter/lib/src/integrations/native_app_start_integration.dart
index bf1e356283..a500c00647 100644
--- a/flutter/lib/src/integrations/native_app_start_integration.dart
+++ b/flutter/lib/src/integrations/native_app_start_integration.dart
@@ -32,7 +32,7 @@ class NativeAppStartIntegration extends Integration<SentryFlutterOptions> {
   bool _allowProcessing = true;
 
   @override
-  void call(Hub hub, SentryFlutterOptions options) async {
+  void call(Hub hub, SentryFlutterOptions options) {
     void timingsCallback(List<FrameTiming> timings) async {
       if (!_allowProcessing) {
         return;