Since the update all the MaxDPS/TPS have been causing massive drops in frame rates and a lot of stuttering in game

Try disable MSAA in additional game settings.

I have everything disabled on that page and all graphic settings to lowest except projected textures

You should enable Vertical Synchronization.

did that as well and it made it worse. currently trying only running MAX and bigwigs

so running 0 addons and only the bot it still does it vsync enabled or disabled
Enhancment shaman
prot pally
ret pally
vengance demon hunter
all of them for some reason. tried running as admin tried giving high priority in processes set the affinity to use all cores. I am lost here as what else to try. also did uninsatll and reinstall of the BIMS and still same thing

So uninstalled wow and re-installed same problem

If your video card is Nvidia, you can try disable the Nvidia Center.

You mean turning off the GeForce experience?

Your problem is caused by video settings. You should try to find out which of them.