VR Performance Very Bad = Makes Me Sick, Headaches. Why is it so bad?

Product: Star Wars: Squadrons
Platform:Steam-PC
Please specify your platform model. PC
What is your gamertag/PSN ID/EA Account name? nasawhy
Are you playing in VR? Yes
Which VR Platform are you using? Steam VR
Which part of the game is the issue happening in? Prologue
What were you doing when the bug occurred? Step by Step detail is helpful. Flying around in the first two single player story missions.
Where did this issue occur? Please include menu name or in game location. Single player story missions.
When did this happen? (dd.mm.yy hh:mm) 01.10.2020 02:00 UTC (approx.)
How often does the bug occur? Every time (100%)
How severe is your issue? Can play, but it's highly frustrating
What happens when the bug occurs? Stutters, ASW artifacts, judder.
What do you expect to see? VR framerates regularly hitting the target for the HMD.
Which ship were you playing? If not applicable, just answer "no" or "none." TIE, X-wing
What components were you using? Oculus Quest via Link, Oculus CV1, HTC Vive, Saitek X52 Pro.
Which customizations (if any) were you using? None.

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Playing in VR, the frame rate is halved (ASW or reprojection, etc.) most of the time, while GPU utilization is at ~40-50%. I have tried changing VR quality settings, but it seems to make little difference in framerate.

I've tried with Oculus Quest via Link, Oculus CV1, HTC Vive, all have the same results. In the rare cases that I do get target framerate (72/90) and GPU utilization is higher, there is pretty steady and consistent judder and stuttering when I turn the ship with yaw or roll.

My hardware: 2080 Super, i7 7700k 16GB RAM, all drivers up to date.

Windows 10 v2004

I can run in non-VR mode on Ultra at 5120x1440 and get 160-200 fps, so something seems to be up with VR performance.