I have mid-range specs, got 50 fps on ground with few other planes, 60+ (AIR) over the ground and sea.
Settings: HIGH preset except: visib=medium, terrain shadows = off & cockpit 512 (every frame) @1080p
No problems.
Here is mine:
(Still under construction) it's 70% done:
PDF + profile file for Saitek software
ZIP file is .pr0 file
Settings.pdf = printed .pr0 settings settings.pdf FA-18-C.zip
A10C quality potential.
It looks and flies amazingly well atm! Love American Avionics!
Hope ED will later add all features, this is really the best plane for DCS.