Does anyone else experience Lag/Freeze on startup

Massive complaints from our users when opening and switching files. 

Using MS 2023 and MS Connect 16

The files open, taking a few seconds, displaying libraries being loaded etc. We can interact with the file for a second or so, then it freezes for a few seconds more. If users click the screeen the dreaded clos/wait option pops up, and a few seconds later, pops back to life. So frustrating