SMAA in dx11

there's any way to use smaa in dx11? i hate playing without any aa and the msaa aa eat my fps a lot in important fights like uber itzaro. i dont know if it's a problem with my gpu or something but using msaa in some games destroys my fps but using smaa dont.

Try using FXAA from your Nvidia Control panel, its not the best AA but still something, and its very very little performance hit.
There is no option to use SMAA in dx11.