Virtual Display seems to be capped at 40 fps, is SudoVDA to blame?

[Spartan304]

Not sure exactly when this happened but when I try to use the Virtual Display option either on my Android phone using Artemis or from Moonlight on another Windows PC, the framerate when trying to play a game or watch a video at 60fps only seems to hit 40 fps. This is both noticeably choppy and it's what the performance overlay is reporting. I've tried setting a static FPS at 60, enabling the double refresh rate, set the fps toggle to both 60 and 120 fps, nothing seems to work. I found a reddit post where someone mentioned this happening to them a couple months ago but no solution but in his post he did narrow it down with it being a SudoVDA issue as when he created another virtual display with VDD, it worked fine. Also, streaming from my normal desktop runs full speed.

Windows 11 25H2
Tried running with Apollo 0.4.6 and 0.4.7-alpha1

[ClassicOldSong]

Set display adapter to your dGPU name. You might be using your iGPU to stream.

[Spartan304]

Thanks, that did it! What's really odd though is that when I just picked Desktop from the list of apps, it worked perfectly fine. Wonder why Apollo was picking my dGPU then but not picking it when using Virtual Desktop? I'm going to find that reddit post again and see if that dude is still having the same issue and let him know the fix. Thanks again!

[Spartan304]

So, not entirely sure if it was a fluke but the single stream I performed after setting the dGPU streamed perfectly fine at 60 fps using Virtual Display however every subsequent stream afterwards is either capping at 40-ish fps or 29-30 fps. What in the world is going on?

Also, to reiterate, this is ONLY affecting the Virtual Display, if I stream from Desktop it is smooth as butter.