I bought this for the PC on a whim yesterday as it was pretty cheap and it is a horrible port. The game runs choppy as hell, and upon some online investigation, I am far from alone. Apparently the game is capped at 30FPS in the PC port, which wouldn’t be so bad if it actually played consistently at that frame rate.
Driving the car, walking/running all drop the FPS to around 5-10 in some places. Its literally unplayable. Terrible job Rock Star, and not the first time you’ve botched a PC port, either. I should have known better and bought it for the PS3. Fucking A.