Why is AddressBookSourceSync using up 97% of CPU?
How do I permanently disable AddressBookSourceSync?
Mac mini, macOS 10.15
User profile for user:
Alwayswantingtohelp1
User level:
Community Specialist
Hello DdSwift,
Thank you for using Apple Support Communities!
We understand from your post that you would like to permanently disable AddressBookSourceSync because it is using up 97% of your CPU. If this is causing performance issues with your Mac, you may want to use the steps from this article as they address what to do if your Mac runs slowly:
If your Mac runs slowly - Apple Support
Best Regards.