I have been having the same problem for a while and after deciding to go back to Evernote for all my note-taking and general knowledge database, I am considering changing to something else.
I open a note - new or old - everthing seems fine.
Move to another app (to read, listen or whatever) and when I switch back to Evernote it is frozen. I calculate it takes between 30-60 seconds for it to become responsive again. When taking notes in a meeting, or from a book, or anything that requires interacting with other apps, it becomes very annoying and frustrating.
Windows 11
Dell XP-9315
Evernote 10.53.2
But I seems to be a recurring issue. Has anyone had any luck solving it?