Thank you for your reports. We released client and service updates this week, that address many MacOS-specific performance issues. We are also aware of recent performance issues with Microsoft Teams meetings, especially on laptops and when using external monitors.
The team is working to resolve these issues. In the meantime, please find troubleshooting information here: https://docs.microsoft.com/microsoftteams/troubleshoot/known-issues/teams-slow-video-meetings-laptops-4k.
An error occurred while saving the commentAnderSon commented
Microsoft Teams is TERRIBLE in general, then to have it take up over 100% CPU when trying to video call is just miserable. Company-wide license forces us to use it. Otherwise, MS would never touch a machine I use.