Why is the engine frame-rate limited?

[Spiegelman]

Speaking of v-sync, I don't think vsync works at all in this game.

Turned it on, tearing in the sewers all over the place.
Tried forcing vsync and triple buffering via d3doverrider, still tearing.

Am I doing something wrong?

I had tearing before I turned it on, but haven't experienced since then (in the Prison now). Maybe try changing your monitor refresh rate to 60 if it isn't already? Or maybe Eigen will come back and can help.

And kleetus, I'll make a TL;DR version for you of Eigenmusic's post:

60 FPS and 60Hz monitor refresh rate =/= v-sync. From what I understand, v-sync forces the game to refresh the frames at the same rate your monitor refreshes the pixels.

Another thing though... if Eigenmusic is right, and your monitor only refreshes at 60Hz, then why would you want higher than 60FPS in your game? V-sync would essentially just lower your FPS back to 60 so forcing the limitFPS variable to false would be pointless.