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 commentTim commented
Teams is making it impossible for me to collaborate - during calls my mac is so slow it's unusable.
Why is it using 140% CPU on my i7 Mac? Do Microsoft even know what they're doing?
I've cleared MS Teams cache and blah blah blah - I think it needs fixing.