I'd like to suggest adding a FPS cap option, similar to what's used in Soldier of fortune 2 and Halo PC.
Let's not kid ourselves here... this game wont run perfect on every system. limiting the FPS to 30 would definitely make for a smoother visual performance, rather than having to stare at the sky just to hit the limit (and this is on a r9800p and a64 3400+)
I'm a framerate ***** myself, but id much rather have a constant 45 or 30 for lower end machines, than a FPS that bounces all over the place. Thoughts? opinions?