10-20 FPS with a high-end system

Hi all,
I’ve been playing BeamMP for about a week now, and I am still unable to figure this out. I have two systems I play Beamng on, one of them is a i5-10400F, GTX 1060 and 16Gb of DDR4 ram, the other a AMD FX-8350, GTX 980 and 16Gb of DDR3 ram. On my first rig, I get about 50-60 fps on “low” settings. On the other I get about 10-20 on “lowest” settings. To try and figure out what is causing such awful framerates on the second system, I have: turned off V-sync, used a 1080p display, tested on freeroam singleplayer on which I get about 100 fps, transferred my SSD to a intel based system, verified integrity of game files, moved my SSD and GPU to a rack server I have that has dual Xeon X5650’s and 144Gb DDR3 ECC ram. Nothing Ive tried so far has worked, im still at 10-20 fps.

Any sort of help is appreciated, I am out of ideas.