i doubt very much that he is , i upgraded from 2 gtx8800 in sil to a gtx560ti and my frame rates jumped from 20-30 on the gtx8800 low detail low screen resolution to , 60-80 fps maxing everything at 1920X1080 on the new gtx560ti , this game relys very heavily on graphics cards ,
p.s processor is a e8600 overclocked to 4.5ghz 4gig ram , so not really the most up to date machine,
u just need to drop shadows to low or off that seems to have the biggest impact to the game , then drop other setting to medium / low until u have reached a happy medium