i have one high end gaming computer, that's decked out from cpu to gpu to monitor

the computer in question is my budget build i play source on. i max the game out and everything. but playing on my other computer and coming back to this one always leaves me feeling like it's not running smooth enough. i notice slight delays, and to someone like me, it's annoying.

I was going to overclock my amd to 4.0ghz, but don't want to fry it in the process.