diff --git a/win32/wsnes9x.cpp b/win32/wsnes9x.cpp
index e5209524..2fb5b2d8 100644
--- a/win32/wsnes9x.cpp
+++ b/win32/wsnes9x.cpp
@@ -264,6 +264,7 @@ extern SNPServer NPServer;
 
 __int64 PCBase, PCFrameTime, PCFrameTimeNTSC, PCFrameTimePAL, PCStart, PCEnd;
 DWORD PCStartTicks, PCEndTicks;
+bool PCFrameTimeIsDefault = true;
 
 INT_PTR CALLBACK DlgSoundConf(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
 INT_PTR CALLBACK DlgInfoProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
@@ -274,7 +275,6 @@ INT_PTR CALLBACK DlgOpenROMProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lPara
 INT_PTR CALLBACK DlgMultiROMProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
 LRESULT CALLBACK DlgChildSplitProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
 INT_PTR CALLBACK DlgNPProgress(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
-INT_PTR CALLBACK DlgPackConfigProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
 INT_PTR CALLBACK DlgNetConnect(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
 INT_PTR CALLBACK DlgNPOptions(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
 INT_PTR CALLBACK DlgFunky(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
@@ -3579,7 +3579,8 @@ int WINAPI WinMain(
 			{
 				ProcessInput();
 
-				while(!S9xSyncSound()) {
+				// no sound sync when speed is not set to 100%
+				while(PCFrameTimeIsDefault && !S9xSyncSound()) {
                     ResetEvent(GUI.SoundSyncEvent);
                     if(WaitForSingleObject(GUI.SoundSyncEvent,1000) != WAIT_OBJECT_0)
                         S9xClearSamples();
@@ -4041,6 +4042,8 @@ static void ResetFrameTimer ()
     else if (Settings.FrameTime == Settings.FrameTimePAL) PCFrameTime = PCFrameTimePAL;
     else PCFrameTime = (__int64)((double)(PCBase * Settings.FrameTime) * .000001);
 
+	// determines if we can do sound sync
+	PCFrameTimeIsDefault = Settings.PAL ? Settings.FrameTime == Settings.FrameTimePAL : Settings.FrameTime == Settings.FrameTimeNTSC;
 
     if (GUI.hFrameTimer)
         timeKillEvent (GUI.hFrameTimer);