DCS in VR (OpenXR) causing both DCS & PC to lock up or at best, run at 1-2 FPS

[skybaby68]

I have 3 home PC's, 2 running DCS in VR and 1 running in 2D

PC 1 & 2 are indentical: 19 14900K with 4090, 64GB DDR5 RAM, but PC 1 is running Pimax Crystal & PC 2 is running Quest 3

Both are running OpenXR and since 2.9.3.51704, both of the above PC's will, at around 60% of the time, cause the entire PC to run at a snails pace when DCS finally gets to the main menu. I have the OpenXR FPS counter running and it plummets from the usual 91.0 down to 2, sometimes rising to 30 or so then back to 1-2.

Most of the time it takes the PC with it, having to exit DCS via task manager  & hope the PC gains enough momentary speed to be able to exit DCS and try again.

Invariably it will also do it coming out of a mission, back to the main menu.

 

My 3rd PC running DCS in 2D is an i7 11700K with a 3080Ti & 64GB DDR 4 and is unaffected.

It's worth noting that this is an all new problem since the last update. All PC's were running fine beforehand.

 

If anyone can relate to these problems and can guide me out of this hole I'd be most grateful.

dcs.log-20240305-185237.zip dcs.log-20240305-145615.zip dcs.log-20240304-210515.zip dcs.log-20240303-004138.zip dcs.log-20240225-152737.zip dcs.log-20240227-042437.zip dcs.log

dcs.log.old

Edited March 5, 2024 by skybaby68

[Flappie]

The last update seems to be disliked by some antivirus. Ensure you add your main DCS game folder as an exception in your AV software.

[skybaby68]

Hi Flappie. Yes I've done that and keep periodically checking that it's still an exception.

[skybaby68]

Also I've disabled all mods from JSGME, deleted contents of metashaders & fxo folders etc & ran the repair. No difference.

Edited March 5, 2024 by skybaby68

[Flappie]

Feel free to try these steps:

 

[Hippo]

I've been having variations on this issue for months now.  It's doing my head in.  I've just updated my original post:

Common factor 13900k / 14900k ?