My pc spec is intel pentium dual-core processor T4200(2.0 ghz,800 mhz fsb,1mb l2

Not very well at all.
You have integrated graphics which are to be blunt ****.

well to get fast performance you can start by getting a dedicated GPU. if this is a laptop, that wouldn't be possible, in which case your option is to buy a new PC

http://www.systemrequirementslab.com/cyri/

this site will tell if your components can play or not almost any game