Reduce buffer size back to 16, enable start menu

RwInitialised non-sense

src/core/ZoneCull.cpp

@@ -16,7 +16,7 @@
 #include "Renderer.h"
 
 #if defined __ARMCC_VERSION && !defined _DEBUG
-#pragma O2
+#pragma O2 // fixes crash
 #endif
 
 int32     CCullZones::NumCullZones;

src/core/main.cpp

@@ -1758,9 +1758,7 @@ Idle(void *arg)
 	if (gbShowTimebars)
 		tbDisplay();
 
-	tbStartTimer(0, "EndOfFrame");
 	DoRWStuffEndOfFrame();
-	tbEndTimer("EndOfFrame");
 
 	POP_MEMID();	// MEMID_RENDER