I bought this game fro $3 over the holiday's and just tried playing it on my new SB rig clocked at 4.5ghz and my GTX470 OC'ed to 800mhz core and its still like as slide show when anything is happening.
I think its the physics. I normally don't post complaints like this but I guess for $3 I should be happy I'm just surprised a game that game out several years ago plays like this....