The most awesome pinball simulator ever runs nice and at full speed for me (even when it says 13FPS!!!).
But there's one very annoying graphical glitch - the ball leaves traces, making it hard to see it after few minutes of playing. I believe this bug is also in other Pro Pinball games, but I tested Timeshock! only.
http://img153.imageshack.us/f/snap0004d.png/