It can be explained by Norton Protection, for example, if you have it installed. Illustrator creates a bunch of a small files on the disk and it is intensively working with them. Accordingly, Norton (or similar) protection doesn't manage, that's why you get freezes. I suppose that the trouble exactly in it. Check where are its scratch discs and all that can slow down its exchange with the discs. Unless Norton then it can be any special services, or anything else.

Unfortunately I haven’t another concrete idea, so if I’m wrong, then connect with adobe support, they must help you. If you don’t want to waste your time, use a third-party tool then. Some of them can be really useful, for instance this one - Recovery Toolbox for Illustrator https://illustrator.recoverytoolbox.com/
Good luck!