PLEASE fix desktop app performance on macOS!! Constant high CPU usage and memory leaks!
I'm running Teams desktop app on macOS Catalina and the performance is TERRIBLE! If I get on a single 1-on-1 video call, the fan on my 2017 MacBook Pro starts spinning like crazy, CPU usage goes up to about 85%, and app begins to use over 1GB of RAM! To put it in perspective, I can get on a Zoom call with 10 other people, CPU usage is at less than 20%, and memory usage never passes 300MB
I've read on other forums to disable GPU acceleration in the settings, but that has only marginally helped.
Please fix your app!

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.
208 comments
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jon payne commented
Still suffering massively with this issue. Like others have said - why can other chat apps do it and Teams can't? (I guess it's something to do with it being an Electron app... but really that's no excuse).
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Anonymous commented
Its still a problem. please fix it. NO other apps for conferencing is having this problem
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Emma L commented
Partially done is no good, we're a year into working and studying from home and the problem appears to be much worse with the latest update. Needs to be fixed. Not good enough when other VC options don't have this issue.
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Emre Önder commented
How to write a chatting application on Mac OS 101.
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vejmarie commented
MacOS has an hardware video encoding software interface which is available in OBS for example and through many other clients. Have you ever considered using it ? My Mac is using 7% CPU to encode a 4k stream. Teams is using 300% CPU, drops frames and becomes totally unusable. OBS is an open source software. Just get inspired by people who properly read an O/S documentation instead of this ****** implementation. You have been good at providing your tools to corporation, but seriously what a mess, and in proper preparation to release such poor quality software. Mac OS users complain during the past year. Would you want us to promote other tools to our businesses ?
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hermanni commented
imagine if one could change from a text chat to another in 2021 with a state of the art machine in under 10 seconds. one can dream!
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str3tch commented
this drives me crazy.. 15" MB Pro, 6 core i7.. Teams pushes the fan on almost straight away. Come on guys!! sort this out! no other VC app does this!
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Petr commented
Partially done? As joke its good, but no. The performance is horrid on all OSes.
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Vasil Mikhalenya commented
partially done, they said
awful work then -
Anonymous commented
This is just not acceptable. I can't use MS teams without headphones because of the fan. Even with good headphones, I have to move away from the computer due to the loud noise. My MacBook Pro 15" 2018 with i9 and 32GB RAM should not be the bottleneck.
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Chelovek commented
Sad to say that, but this is just not acceptable. Better to mark this application as cpu benchmark for the stress tests.
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Anonymous commented
Definitely not working or partially done. My daughter has to use teams on my Mac for homeschooling during the current lockdown. It burns up the cpu and gpu (8core mp) with 2 gpu. I what world is this ok?
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Vera commented
It's terrible. I had a Teams session with 6 people last night, my macbook was the only one who made terrible noise, and the battery was empty so fast. All the other laptops which were windows laptops didn't have that. My laptop had the best specs out of all of them so the problem is the app on a macbook. It's terrible and not acceptable.
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JasonM commented
This isn't fixed, not even close. Microsoft Office is the slowest and worst performing app on my Mac.
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Morgan commented
Another here to report how bad this is. 2018 Mac Mini 6 core CPU and Teams runs at 180% to 200%
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Ben Roy commented
Seems much worse when the meeting window is on the retina screen. If it is on a lower resolution, external monitor it is better. Or if the meeting window is minimized on the retina screen it is better.
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Charlie commented
Please fix this - it's SO BAD...
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Anonymous commented
fix it! The suggested work arounds don't work. Teams crashed when I tried to unmute today. It's not acceptable.
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Anonymous commented
Not fixed with latest update. It's unbearable.
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MG commented
Same problems on linux.
Comparing Teams vs Telegram desktop, Telegram speed is 100x than Teams client.Please fix client performance. We want works faster. If we wanted to work slowly we would use email :)