diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 4366b09..e466ca5 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -531,8 +531,14 @@ public partial class MainWindow : Window
         RadioFallbackIcon.Visibility = Visibility.Visible;
     }
 
+    private DateTime _lastMetaUpdate = DateTime.MinValue;
+
     private void OnMediaMetaChanged(object? sender, MediaMetaChangedEventArgs args)
     {
+        // Throttle: maximal alle 2s verarbeiten damit der UI-Thread nicht geflutet wird
+        var now = DateTime.Now;
+        if ((now - _lastMetaUpdate).TotalSeconds < 2) return;
+        _lastMetaUpdate = now;
         if (sender is Media m) Dispatcher.BeginInvoke(() => UpdateEpgFromMedia(m));
     }
 
@@ -1084,7 +1090,6 @@ public partial class MainWindow : Window
     {
         if (msg == WM_KEYDOWN && (int)wParam == VK_B)
         {
-            // GetKeyState(VK_CONTROL) - High-bit gesetzt = Taste gedrueckt
             var ctrl = (NativeMethods.GetKeyState(0x11) & 0x8000) != 0;
             if (ctrl)
                 Dispatcher.BeginInvoke(() => BtnSidebarToggle_Click(this, new RoutedEventArgs()));