We understand that there are a lot of optimisation issues with the game currently. We have always been transparent about this, the game is very demanding but over the course of the next few days and the upcoming weeks we will be dedicating a lot of time to performance and optimization. You will see rapid improvement. For now some of the heavy perf killers are resolution scaling, shadows, as well as the check boxes for Distance Field Ambient Occlusion, Screen Space Ambient Occlusion, Dynamic Tessellation, Ground Clutter, and Sky Clutter sliders.
I would recommend that you guys turn your shadows down, disable both types of occlusion, tessellation and reduce your sliders. If youre still having some perf issues, try reducing your resolution scaling down a bit and youll find yourself much more comfortable playing the game!
Dont worry though, well go along to improve this heavily in the upcoming weeks!