Teams hogging memory, running slowly

This doesn't help a mac user having to use the Teams program.

Hope I can save you all time...

There is no true resolution to this.   I've dedicated a lot of time in the past 3 months.   I spent many, many hours with both the Office 365 team, and the Windows team to try to resolve it.  In fact, today I'm typing this on a brand new Surface PRO replacement device MS sent me to try to resolve the issue.  (Nice gesture by the way.  They do have great Customer Service team members!!)

What I've tried:

1. Thinking it was my PC, I even purchased a new Surface 7 back in December.  It was not the PC.  
2. I worked for about 3 weeks with the the Office 365 team.  They knows this is an issue and from the string, for a very long time now.  After about 3 weeks, they fell short to call this an Teams issue, and kept me running in diagnostic loops.  (Scan, log, send files, try this, try that). They finally they gave up, said Teams is running properly and that it's an issue with Windows 10.  I have the email correspondence.
3. The Windows 10 support team, tried hard to help.  Same diagnostic loops.  Even sent me a new Surface Device.  (Again!  Sincerely - Great Customer Service people,)

Today,

with the new surface 10 finally up and running for 1 full day, I'm back to the loud fan, high CPU and disastrous memory issues related to Teams.

Tips:

1. The disabling of the GPU was the only valid option, but didn't help enough.  (right click setting on your teams icon in the task bar)
2. The issue is caused by the add-in for outlook.  If you don't meet using Teams, disable this NOW.  It will help the most.

For us, well we can't we disable the add-in.   It defeats the purpose of having teams.   If we do, we can't book meetings from the outlook client.  We are even paying for the extra audio conferencing add-in.  

Result:

We are exploring other options, which likely means dropping our entire 365 subscription to offset the costs of move to a platform that offers meetings, collaboration, email, and drive sharing.

Sad that MS has not realized the urgency of this fix.

Sorry for the bad news.  I hope I at least saved you all a bunch of time.

Your experience sounds painful. It's not the Teams Outlook add in for us  - we also need it and have it enabled but recently Teams memory usage has subsided to reasonable levels. At least in task manager - though I've also noticed the Surface Book 2 getting extremely hot lately and the built in cpu "throttling" killing performance. Are you using Exchange Online? We're still on on prem Exchange so maybe that makes a difference.

Office 365, so yes. 

Interesting you say that about the CPU.   I did notice the fan noise going through the roof, and the CPU spiking in the last 2 weeks.  

I also noticed that camera usage during a teams meeting bring the machine to a crawl, and if we screen share too, well, that is just the nail in the Window Frame.  (Sorry for the pun)

In my experience memory and CPU are indeed going up (i'm seeing 800MB - 1,2GB) in a teams meeting with video, hoewever when checking task manager, it's mostly the GPU that spikes to almost 100% that seems to slow down the device (in my case Surface Pro 6). As soon as I close the Teams app, GPU drops back. Just to be clear: Slowing down means that keystrokes and mouse clicks are laggy to a point where the system becomes almost unusable, video in Teams is not smooth anymore.

I have not really tested with GPU acceleration off (will try next).

Other things I've tried is to stop video from my end, and it does seem to relax GPU (obviously), and bring the system in to reponsive operation.

One more test that I'm still trying is to use the Webapp and see what happens, but that seems like a crazy workaround, assuming the Webapp giving a better performance compared to the desktop app.. :-(