Fix high CPU usage of Microsoft Teams by using the web-app

As much as I love and use Microsoft Teams, way too often I noticed it was using over 8% CPU in idle state. My computer ran hot, slower than it should and the battery drained faster than usual. Especially during video-calls the CPU use would spike to 50 or 60%, which was abnormally high. (fyi. on a Hexacore i7)

How did I ‘fix’ this issue?

I decided to deactivate the regular Teams app and try the online version of Teams in my Edge (chromium) browser on And I must say, so far I’m impressed.

  • My idle state is now 0%
  • During a video call it only uses about 3% CPU and a bit of GPU
  • Nice bonus, the notifications from the web-app are standard windows 10 notifications. This means they can be blocked in Windows’ built-in ‘Do not disturb’/’Focus mode’. It always bothered me the standard Teams pop-ups still came through. (which can be very awkward during shared-screen meetings or presentations)

Needless to say, this works much better for me.

What are the downsides of using Teams web client or web-app?

  • You’ll be missing out on video effects like ‘fit to frame’, blurring the background or replacing it with an image.
  • You’re also not able to show multiple people at the same time. It will only show 1 person’s stream (who’s currently speaking) or an active screen-share.
  • When not actively using the app, It seems like it’s reporting me a little too fast as being “away”, while still using the PC.
  • Screen-shares from colleagues do not always work properly (! which could definitely be a deal breaker !)

That’s why it’s a good idea to keep both options (regular app and web-client) at hand.
Just configure the standard-app to not launch at start-up.

How to install the Teams web-version as an app

In the latest version of Microsoft Edge, you can install websites as apps. This will give you a minimalistic, app-like experience for the Teams-webversion. It will look like this:

Screenshot of Microsoft Teams, installed as a Webapp.
  1. Visit and click the 3 dots in the top right corner of your browser
  2. Select “Apps” and choose ‘install this page as an app’
  3. The Website will now open in a ultra-minimal browsermode and will look/feel just like a Windows 10 app.
  4. All you need to do now is pin the ‘application’ to your task bar or start menu and from then on you can always launch it from there.

I’ve been using the new professional Outlook App like this for about a year now, and it works perfectly.

It’s a relatively simple solution to a very pesky problem. Hope this tip helped.

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