When the game window isn’t being focused on by the user, Roblox reduces its maximum frame-rate to 15 FPS so that it doesn’t consume as much of the GPU.
The problem with this is that Roblox’s automatic quality mode actually thinks the game is performing poorly while its in this mode, so it starts to rapidly degrade the graphics quality, and it can take awhile for it to recover due to the skewed sample data.
I guess because of the way PF is, you get over 50 FPS and then AA kicks in but then it lags and then kicks down to lvl 8< and repeats or something. I don’t know but it’s definitely happened on PF before.
Interesting. We do some hysteresis to try to make sure it doesn’t happen but yeah in case of dramatic performance changes sometimes it may not be enough. We enable AA gradually but even still, sometimes the impact is large. What is your GPU and what resolution do you play with?