The GUI has become much less “fluid” ever since I started using iPad OS and appears to have gotten worse with each patch updates. It’s basically the entire interface and I’m surprised there aren’t more such posts on the forum. Am I missing something?
I have no problem whatsoever on a 2018 11" iPad Pro. And I consider myself a pretty heavy user (multi-track audio recording, backups to NAS, stage manager, ...)
It would be difficult to record it as it is ever so subtle but definitely there. It’s like a slight lag with everything including typing. Again, we‘re talking mere milliseconds but definitely discernable.
I've found that doing DFU restores to whole numbered releases (e.g. iPadOS 15.x.y to iPadOS 16.x.y) generally helps preserve a bit of speed and smoothness. Though, it's not like the M1 still isn't way overpowered for what iPadOS 16 has to offer.
I'm running current 16.4 beta on my 2018 12.9 iPad Pro and not experiencing any lag. I've had some bugs like everyone but not lagging. Running great for me.