Originally Posted by Dez 
Mayb its because the work is still in progress, but seriously I know dozens of older games that look much better visually. And those games even run on my older pcs.
Were those games coded by 1 person with gfx created by 1 non artist?
System requirements are high relative to graphic quality for this reason. We have no time to optimise the game for every gfx card out there.