PlutoMW3 received a massive feature update a few months ago which increased frames, alot. Read this thread https://forum.plutonium.pw/topic/7149/bug-iw5-developer-fps-fix-bounty/
If you still can't get decent fps and are probably gaming in a igpu (which was never meant for gaming), isn't really our client related problem tbh and I doubt those commands the OP posted is gonna make any significant difference in your game/frame wise. Upgrade your PC.
//Locked.