I wasn't expecting max, merely hoping for better than awful; i can get upto 60 fps having used a high-fps config. It's just especially weird when I get ~20 fps on default settings, and it barely increased with configs.
Some things that would help fps drastically:
AA off
Low texture settings
lower then your monitors native res for games.
It is going to make things look kinda crappy, but it will help. If you really wanted to you could turn the res down to like the lowest or somewhere really low and could have graphics settings pretty high with decent fps.