Thanks for the explanation, that makes sense. For clarification though, the bottleneck isn't my video card or CPU, it's the 250fps limit, right?
Edit:
Originally posted by Edgar
...I myself found that it is better to set the FPS limit ON at about 2-3 fps less than the highest framerate the system can run. This way you get as close to max FPS as before but with much less CPU usage.
That's what I wanted to try, but can't because of the slider not going high enough... So yeah, I'm with Morgan on that one...