In talking about FPS and "how many can you see", I wanted to point out that the focus shouldn't be "high" fps, since once you get past your monitor's framerate, anything higher is just a waste. What is more important in being able to play is:
a) High "enough" fps so that the game is smooth. This is NOT the same as if the eye can detect a higher framerate.
b) Consistent framerate.
In order to achieve both, using the video->advanced->max foreground FPS setting can help make play better. This option doesn't print the actual fps that you are setting it to (a bug) but it does work. Setting to 30 fps for me makes the game very very playable, reduces the load and heat on my computer (when the cpu gets hot, framerate suffers), and allows me to set higher levels of graphic quality while still maintaining a consistent framerate and thus playability.