I've noticed that my game works 1.5-2 times faster on some PCs, while it works like it should on others. Maybe on some PCs TIC() is called faster than 60 times per second? Is there a way to work around it?

Could you run https://tic.computer/play?cart=122 on these PCs and check fps?

thanks

I've just done some tests on my PC with the ghostmark cart and it looks like FPS is linked to monitor refresh - I'm getting a fluctuating 100-120 fps at 120hz and a solid 59-60 fps at 60hz.