I would say that there is a bottle neck, I would start with your system memory...do you have a lot of things running in the background? Otherwise it seems like your computer should have the power to push that game. My next suggestion would be to check drivers....look for new drivers and 3rd party drivers. it may help. If your only getting 33fps, and you have done everything that i have mentioned already, you may just have to accept 33fps, or a lower resolution. it may just happen to be the best your computer can do...take a look at what other people are getting with similar specs. if its way off, then you know you have a problem, if not then upgrade.