iTunes 12.2 hangs after every edit!

Since the last update to iTunes (12.2.0.145), I have to wait literally 2-3 minutes (with spinning beach ball) after every single edit I make to a track (name, album, comments, whatever).

Any ideas on what is causing this? I've tried Repair Permissions already, to no avail.

I'm on an iMac (mid-2011 build), with plenty of memory, etc.

via iLounge Forums http://ift.tt/1CWOI0N