A Microsoft file hosting and synchronization service.
Hi 5ilverorange,
I go through the post carefully. Really sorry for the inconvenience. It is a known issue that OneDrive sometimes use too high CPU usage and memory in Mac OS, per the threads from OneDrive UserVoice: CPU Usage too high & Fix the memory leak in the macOS OneDrive client!, the related team of OneDrive for Mac is working on the issue. so, I would suggest you make sure you are using the latest version of OneDrive for Mac to get fix for this. You can download the standalone install package from the link: OneDrive release notes
OneDrive Finder integration is to get sync status directly from Finder. I would suggest you disable them and check if it is better. You can find it by **clicking the Apple logo in the top left corner of your Mac Desktop and select System Preferences, then select Extensions in the top-level menu.**Uncheck it and check the result.
Additionally, you may turn off File on-demand in OneDrive Preference and check if it help. for more information on file on-demand: Save disk space with OneDrive Files On-Demand for Mac.
As for the preference grey out when pause syncing, I can see the behavior on my side. I would suggest you vote for the thread in OneDrive UserVoice: Link to let the related team of OneDrive for Mac change it.
Really sorry for the inconvenience again and much appreciate your understanding!
Best Regards.
Clark