Low Fps

My computer
Processor: [AM3] AMD Phenom II X6 1090T BOX 3,2 6MB 125 W HDT90ZFGRBOX Black Edition
motherboard :Ascrock N68C-S UCC VGA
Ram :4 GB
desktop graphic :ATI Radeon HD 5500 Series desktop graphic
Windows 7

Where is problem i have only 50-60 fps -.-

Please help me

Comments