FPS is limited to the screen refresh rate (Hz), which is normally at ~60 or, if you got a 3D screen, at 120. So, unless you force (!) V-Sync to be off (it's ON normally, with no way to turn it off via Freelancer itself), there will not be a computer running the game at more than the respective screen refresh rate. (There is a bug when switching between window mode and fullscreen mode though, which might, I'm not completly sure, also enable the game to run at more than that.)