Hello,
Hanging of Outlook can occur due to the following reasons:
1. Third party plug-ins.
2. PST File Oversized.
3. Wrong settings of POP/IMAP server.
4. Antivirus software may be outdated or conflicting with Outlook.
5. Corrupted Outlook profile
6. Corrupted or damaged PST file.
As a suggestion, I would like to suggest you to perform repairs on the Outlook Data File using
scanpst.exe. Hopefully, this will resolve the issue.
For more information you can see this link: http://www.msoutlooktools.com/problems/hanging-problem/
Note:
Improve community discussions by marking the answers helpful.
Thanks & Regards
Clark Kent