Pretty much what the title says! I use the Quest 2 and tried Steam Link recently, normally I run Virtual Desktop. I noticed that after recording for a bit on OBS, there was a massive amount of frame loss from OBS stats. I ended up figuring out when AMS2 loses focus, the FPS ends up being smooth. When it's in focus, it stutters. Not sure if I'm missing a setting, but it seems to be a bug from one of the recent updates.
Isn't this simply because if it's not in focus it doesn't have to display it and that removes overhead?