diff --git a/GPU/GPUCommon.cpp b/GPU/GPUCommon.cpp
index d013a08256..79ee8c9885 100644
--- a/GPU/GPUCommon.cpp
+++ b/GPU/GPUCommon.cpp
@@ -48,9 +48,12 @@ void GPUCommon::PopDLQueue() {
 
 u32 GPUCommon::DrawSync(int mode) {
 	// FIXME: Workaround for displaylists sometimes hanging unprocessed.  Not yet sure of the cause.
-	ScheduleEvent(GPU_EVENT_PROCESS_QUEUE);
-	// Sync first, because the CPU is usually faster than the emulated GPU.
-	SyncThread();
+	if (g_Config.bSeparateCPUThread) {
+		// FIXME: Workaround for displaylists sometimes hanging unprocessed.  Not yet sure of the cause.
+		ScheduleEvent(GPU_EVENT_PROCESS_QUEUE);
+		// Sync first, because the CPU is usually faster than the emulated GPU.
+		SyncThread();
+	}
 
 	easy_guard guard(listLock);
 	if (mode < 0 || mode > 1)
@@ -96,10 +99,12 @@ void GPUCommon::CheckDrawSync() {
 }
 
 int GPUCommon::ListSync(int listid, int mode) {
-	// FIXME: Workaround for displaylists sometimes hanging unprocessed.  Not yet sure of the cause.
-	ScheduleEvent(GPU_EVENT_PROCESS_QUEUE);
-	// Sync first, because the CPU is usually faster than the emulated GPU.
-	SyncThread();
+	if (g_Config.bSeparateCPUThread) {
+		// FIXME: Workaround for displaylists sometimes hanging unprocessed.  Not yet sure of the cause.
+		ScheduleEvent(GPU_EVENT_PROCESS_QUEUE);
+		// Sync first, because the CPU is usually faster than the emulated GPU.
+		SyncThread();
+	}
 
 	easy_guard guard(listLock);
 	if (listid < 0 || listid >= DisplayListMaxCount)