I am looking for the commands that mostly effect the CPU, I am trying to minimize the CPU usage because the FPS is very CPU limited on low in Crysis Wars. I realize that most commands will be affected by Wars in some way.

You could try e_particles 0. It disables all particles, (They're CPU heavy) so you should get a lot better FPS.

I tried turning particles off in Wars but the ability to turn them off is restricted, I did turn some of the particles settings down though.

type con_restricted = 0 to unlock the console