I didn't know there was an alternative. I suppose you could go into one of the ini files and adjust it. I did this with Mass Effect based on posts made on Bioware's forum.
On my PC, I set everything to max and besides some occasional low-rez textures thrown in next to high-rez ones, overall the game looked great!
Kind of off-subject, but play the game on Nightmare! That's how I beat it on my first play through. And make sure *spoiler*to kill Gaxkang!*spoiler* 🙂