It's gonna be hit and miss. Seems like everyone uses different settings. On the launch screen, I just check mark "High", then once I launch the game, go to Settings and also just checkmark "High" Seems to work pretty good.
My specs:
Phenom II 970 stock speed
8Gb DDR3 1866 RAM
EVGA GTX470 SC
2X 500Gb drives in RAID 0
Win 7 Ultimate 64 bit
There are a lot of routes you will just not get more than 10 or 20 frames out of. It's the graphics core, RSC is working on it. They'll get it fixed.

Ryzen 7 2700K, Asus Prime X570P, 32Gb DDR4, 2x 1Tb M.2 SSD's, RTX2060 6Gb, Occulus Rift
Win 10 Pro 64bit, keyboard/ mouse/ wheel/ pedals/ baseball bat
Security Coordinator on the Battleship Iowa