So deleted old saves and reshade, revalidated, restarted, GPU driver is up to date, using pregen1, tex streaming on, put everything to lowest setting and it plays, but is still juttery when I turn and getting lower frame rates at 1920x1080. I have to put everything on lowest setting and res at 1600x900 to get it to play anywhere near how it played in A17 with most settings around medium at full textures and 1920x1080 res. So at least for me, it is performing way worse.
Nvidia GTX 1050 SC
AMD Ryzen 5 1600
32 GB RAM