Mannequin animations lag if using constraints in level sequencer

Mannequin lags after gun. This happens even if i bake the constraint or animation sequence. Does anyone know why this issue is happening? This wasn’t happening some days ago
Animation

I found out that this is only happening if i have SM6 enabled. Also only happens on the Mannequin. Does anyone know how to resolve this? Also The mannequin appers to be rendered blurry with SM6 heres another gif
BuggySM6