I only have this lagging issue when I switch between my two users and use the fingerprint in both users, if I only use the pin code to open both users there is no problem, after opening with pin code and then using the fingerprint there is no lagging issues even if I switch many times using both FP & PIN.
So I guess there is an issue between the two identification options when opening both users for the first time. I also noticed when changing user I first see the FP symbol then the lock symbol and then the FP symbol again which stays on the screen.....like a blink!
I am always starting in the owner profile by the way!!!
P7P 14 with kernel 5.10.199 Installed GOS November 10th from the official site.