Linux noticeably smoother on AMD

[broozar]

I am running Wings on 4 systems:
- A: Windows & nVidia
- B: Debian Linux & nVidia (current closed source drivers)
- C: Solus Linux & AMD (mesa GL / open source drivers)
- D: PopOS/Ubuntu Linux & nVidia (current closed source drivers)

A runs excellent.
C runs excellent as well.
B and D run OK, but rotating the camera is not anywhere as smooth as on Windows. I have no geometry loaded, I am just rotating the empty grid.

This is a strange experience, especially since the closed source nVidia drivers on Linux are essentially a necessity if you want to run games or other 3D applications like Substance Painter or Blender well. Furthermore I am astonished that the open source AMD driver renders Wings so fluently, since these drivers have very mixed results with Steam games and produce horrible artifacts in Substance Painter.

What I am asking is this:
- Is this somewhat worse performance on Linux+nVidia a known issue, or does it just happen for me?
- Is Wings on Linux particularly optimized for AMD and Mesa?
- Any tips for getting an equally smooth output on nVidia just as on AMD?