Audio sync issues with DeoVR via Virtual Desktop with 7-8k videos

[lordart]

I have been moving to the Quest 3 as my primary VR headset from the Valve Index. (Better picture resolution, etc.) If I use the native app via DLNA, the 7k-8k videos play fine. If I use steamlink or virtual desktop, the audio is very out of sync by seconds (I can look at the mirror video on a normal 2D monitor while playing and listen within the headset to see that the video is playing back out of sync rather than it just being a network issue.) I have found if I lower the resolution of virtual desktop to "low", things are in sync again, but even medium it starts to be out of sync. Doesn't matter if I change the FPS, anything higher than low it is out of sync. I went back to the original video player I use to use, Whirlgig, and there is not problem at "godlike" 120 fps at all. So it is certainly something internal to DeoVR, unfortunately. I am using the k-lite codec pack.

My system specs are a Quest 3, Wifi 6E (so 2400 connection), i9 14900ks, RTX 4080, 64 GB RAM. 10 Gbe networking both from the primary machine, and the NAS where the videos are streaming from. (The NAS HDs do 800 MB/s all the time when I do backups to it, so it isn't a hardware speed issue).

I did retest it under the valve index and there isn't an issue. The fact that it works under whilegig via the quest 3, points more to there being some strange interaction with virtual desktop/steam link between DeoVR and those virtual screen applications.

Any help would be appreciated!