how to downgrade Nvidia web drivers?

Im trying to get my system to run smooth its an i7 8700k and gtx 1070 build and it runs super smooth by enabling the iGPU and taking out the 1070 but when I try and get it to run with the 1070 it lags and stutters using high Sierra 10.13.3 and newest web drivers. I have intel disabled everywhere when using the 1070 and I have followed so many guides but cannot get this thing to work

submitted by /u/poetikplay
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