Markus Binder wrote: > Ah, thanks! Now it works better. The small number shown on the top > left of the screen of my game indicates the frames per second drawn. > I get 22 fps now instead of 18 before with my MacBook, that is 20 % > faster. The 4 fps more sound to be not the big step, but I think the > feeling of the gameplay is really better with it. :-) Markus is now using CopyBits, instead of the 'picture' command, to draw (most of) the PICT resources for his game. The game loop is throttled by inkey$, which is called once each frame. frame time = inkey$ time + calculation-and-drawing time By default, inkey$ time is 2 ticks = 1/30 s (the same as the default HandleEvents time). If my arithmetic is right, calculation-and-drawing time has dropped from 0.022 s per frame to 0.012 s per frame, nearly twice the speed. Robert P.