Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I had this problem a few years back in Ventura, (there was a thread somewhere) my only option was to wipe the OS fully clean and start again then restore from a backup.

Something is corrupted somewhere and you'll pull your hair out till you do this.

it was when they first released the security feature to allow or deny drives to connect to the mac that sent it slow.

Edit: link here: my old thread
Thanks.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.