I didn't know anywhere else to put this so I would like to give you my suggestion.

When you are in configuration settings for changing graphics details. I would like to suggest the devs make tool-tips for every single option. Stating What each thing does and if it will improve performance or not. It could go so far as to know what your machine can handle and give you recommendations for each setting.

This is common on some MMO's and figured I would throw it out there.