There is one thing you can do and it helped me. I have a very big expensive TV and I did not know on the PS3 if you use HDMI like I do there is a setting that you need to change from limited to full and that made a world of difference for me. If I can think of any thing ells Ill post it for you..
That's to bad I swar this game will drive you nuts. Here is a link to send a privet email to Eric and see what he has to say about this... http://community.us.playstation.com/t5/user/viewpr