Anyone got any idea why my fps is dropping when its to much happening? I mean, when i drop 16 totems, or I'm on a boss in heroic, my mains fps drops down to 15-25, I'm usually between 70-90.

i've checked settings in ISboxer, innerspace and inside the game..
I've tried to put 1 core on main, and 3 on slaves, all on all etc, but doesnt help..
Also, this never happen on keyclone, i mean i dropped down to 50 fps, but i didn't notice the lag..