Hey guys, just got back frrom a near 1 year break and im having a lot of trouble. I seem to be lagging, really, really bad. This is what i've done so far, hopefully you guys can give me other tips

Defrag CA
Game Booster
Cc Cleaner
Registry cleaner

I tried to take our textures, but it says my game file is corrupt. Are there any other possible ways to speed it up? Help is really appreciated.