Currently when I turn my character I either freeze or it lags for a couple of minutes. Moving forward and standing still gets me 60 to 90 fps. Turning is horrendous. Is this normal. It could be sli but it seems to be scaling alright.

I havent tested turning off my second card yet or turned off mods. However I'd hate to reinstall Skyrim again. Any quick tips?

check your VRAM usage. spikey turning sounds like it's full and you should lower some high res textures.

use an external programm to monitor the VRAM or use a mod manager to quickly disable to biggest texture overhauls you got and see if that helps.