diff --git a/source/main.dfm b/source/main.dfm
index af9285b0..8d3a28c2 100644
--- a/source/main.dfm
+++ b/source/main.dfm
@@ -6763,6 +6763,7 @@ object MainForm: TMainForm
   end
   object TimerFilterVT: TTimer
     Enabled = False
+    Interval = 500
     OnTimer = TimerFilterVTTimer
     Left = 40
     Top = 269