Iam runnin gpcsx2 on my pc but it gives me very slow speed ......if i overclock it the fps will be fast ?

Uh not sure if you're serious as this is the playstation are and that computer is in excess of atleast 7 years of age. But go to intel's site and put the name of your processor in, they might have an auto overclocker or something that can help streamline the processor, other then that you're better off with a new computer.