Teamviewer causing Excel to hang on remote PC and Host

I have been experienceing symptoms of this since version 11 or 12. Simply copying data from a cell will cause Excel to hang for at least 30 seconds, even if I am not connected to a remote PC. Just having Teamviewer running on the host will cause the issue. 

I have tried disabling clipboard sync as described in other posts, but that did not help. I have also tried various other changes within Teamviewer (disable UDP) and Excel (hardware acceleration), but nothing seems to help.

Can anyone offer some insight on why this might be happening? This is very frustrating for me, since I use Excel 4-6 hours per day for work, and require Teamviewer to log in to remote PCs throughout the day as well. 

Thanks in advance.