If you disable shadows in graphicSettings.lsx you gain 20+ fps and if you disable TextureStreamingEnabled in the same file you get way smoother screen scrolling.
Devs might want to check why TextureStreamingEnabled kills the smooth scrolling and maybe add a shadows on or off in the game settings.
Where are these files please as the camera is driving me nuts. Thanks for any help
It's in C:\users\"you're pc" do a file search in there.