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 commentMatt Killick commented
In addition to high CPU another issue we have is with Intel Macs on sending video at 480p. Macs running M1 chips send send at 720p. Performed test calls with Lenovo Thinkpads, Lenovo ThinkSmart units, iPhone / iPad .. all send video at 720p , 4 diff models of MBP only send at 480p! Anyone else seen this issue.