Again, my steam overlay isn't working so I can't report on FPS. With everything on ultra, 1440p, gtx 1080 and a 6700k with 16gb ram, and regedit VideoMaxMemory https://omegle.onl/ https://xender.vip/ to 8192, it feels like 30ish FPS, so expect pretty significant performance loss.
That said, no graphical artifacts, audio a little crackly, but it works and is roughly playable. From my experience with this and BFG:A, both UE4 games, I'm gonna take a guess and say that UE4 games in general are working pretty well in WINE. I will test this further with Fractured Space, and maybe Dreadnought.