Thanks, I just max out every single thing at 1440p and get 62 fps as a minimum even with Hairworks completely maxed in patch 1.06.
I removed GeForce Experience because for some reason it always decides to muck up my game settings. I will say I don't overclock my GPU's as I want complete stability and I get enough performance in SLI, and Abobe Premiere doesn't like them OC'd much either.
Also be warned the Witcher 3 doesn't like some GPU and CPU overclocks sometimes. The engine seems very finicky at times.
EDIT: Got around to playing a bit after also increasing the core count usage from 1-4, and my new max fps is 110, up from 84

The game also runs much smoother now.