Whoops.. I can has memory leak?

src/AppFrame.cpp

@@ -358,7 +358,6 @@ AppFrame::AppFrame() :
     SetAcceleratorTable(accel);
 
     // frame rate = 1000 / 30 = 33ms
-    frame_timer.Start(33);
 //    static const int attribs[] = { WX_GL_RGBA, WX_GL_DOUBLEBUFFER, 0 };
 //    wxLogStatus("Double-buffered display %s supported", wxGLCanvas::IsDisplaySupported(attribs) ? "is" : "not");
 //    ShowFullScreen(true);
@@ -381,6 +380,10 @@ void AppFrame::initDeviceParams(std::string deviceId) {
     if (devConfig->getIQSwap()) {
         iqSwapMenuItem->Check();
     }
+    
+    if (!frame_timer.IsRunning()) {
+        frame_timer.Start(33);
+    }
 }
 
 
@@ -719,7 +722,8 @@ void AppFrame::OnTimer(wxTimerEvent& event) {
     } else {
         fftDistrib.setFFTSize(DEFAULT_FFT_SIZE);
     }
-    fftDistrib.setLinesPerSecond(60);
+    fftDistrib.setLinesPerSecond(24);
+    wxGetApp().getWaterfallVisualQueue()->set_max_num_items(24);
     fftDistrib.run();
 
     wproc->setView(waterfallCanvas->getViewState());