> The important thing now is: How does it react when you use vsync in window and in > fullscreen mode? Using it without any special options is just the base value. To > check input lag, it's interesting to know how much longer it takes for vsync (and > maybe triple buffer) in both, window and fullscreen.
Have you played with the usb polling rate? It might not make a difference as MAME only reacts to inputs once per frame, but it would be interesting none the less.
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