@@ -445,10 +445,13 @@ run(Uxn *u)

 		if(uxn_screen.fg.changed || uxn_screen.bg.changed)

 			redraw();

 		now = SDL_GetPerformanceCounter();

-		if(!BENCH && ((Sint64)(frame_end - now)) > 0) {

-			SDL_Delay((frame_end - now) / ms_interval);

-			now = frame_end;

-		}

+		if(u->dev[0x20]) {

+			if(!BENCH && ((Sint64)(frame_end - now)) > 0) {

+				SDL_Delay((frame_end - now) / ms_interval);

+				now = frame_end;

+			}

+		} else

+			SDL_WaitEvent(NULL);

 	}

 	return error("SDL_WaitEvent", SDL_GetError());

 }