It's just a question ...
I have not much experience with PC-s and last technologies , i used and i use Mac-s for my work from 12 years .I was playing CoR on a MacMini , but because it's not just right for gaming decided to buy a minimal gaming PC.
AMD Ryzen 7 1700X , Radeon RX580 8Gb VRam (Saphire Nitro), 16 Gb Ram.
It's play very smooth at Very hight details (max) details , fullHD , real @60 FPS.
(and no more fps drops or lag using 500 mb/s IPS internet connection)
But only Antialiasing it's greyed out (as you can see in screenshot)
Any idea why ? ...
https://ibb.co/iScQhJ
https://ibb.co/cs72Uy