Team is a memory hog! 100s MB! Slack is about 50.

There is a noticeable delay navigating between channels as well as switching between the Chat and Teams tab. This accumulates when I have to frequently switch between individual chats and team chats.

Too slow!

save the theme settings

Improve performance of Giphy. Yes I know it isn't yours but it is so slow at times to load a search result or the gif doesn't load at all. Maybe provide them with free Azure hosting?

Teams is very slow to switch between items, type on threaded conversations, pretty much do about anything on a really advanced, modern computer.

Need to dramatically reduce Teams CPU usage, it caused computers to crash, and users to not use Teams because it slows their PCs and cause other applications to crash.

MS Teams currently slower in terms of start-up, restarts, logouts often, slow call establishment compared to other tools. Needs improvement on the performance and stability part of it.

I have downloaded the Microsoft Teams Application and I would like to be able to open another instance of the ap to run at the same time on a different monitor. I am using a Tri-monitor scenario. I like how teams pulls everything together, however, without the ability to open multiple instances its forcing all of your aps onto one monitor which defeats the purpose of having multiple monitors. I do this all the time with Excel. If it can do this already, I have not figured it out yet.

Finish the development and perform some probing before release!

Have option for sound notifications

Why do websites not render properly within tabs? We see the website but it is shifted lower in the screen and at the top it says website not accessible! This worked last week and now no longer works!

Right now it simply loads too slowly, and it has that massive in-your-face splash screen while doing it.

Right now, switching between tabs is painfully slow since tab content is reloaded everytime you visit a tab. (Especially true for integrated web services like Wrike)

Running Windows on a Retina MacBook with an external monitor I have the scale of the retina display set to 175% and the external (Main display) to 100%.

Now if the main screen (seemingly only on boot counts) is the external one, the teams interface is so small that it is basically illegible. If the external monitor is disconnected while booting the teams UI is normal on the Retina display, but gigantic on the external one, when connected. Other apps seem to handle this, it would be nice if Teams could, too!

Please!! add video playback directly in teams!!
Is a nightmare to have to download it or open it in the browser and login every time, specially if you work in a lot of video projects

All our employees use Macbooks. If they install the Mac version of Teams on Mac OS X, or install Windows natively (via Bootcamp) and install the Windows version of Teams, then performance is absolutely fine.

However, if they install it into Windows 10 running as a Parallels VM, it uses 100% CPU, and slows the machine to a crawl.

This is readily reproducible, and I am happy to supply additional information if required - I have attached the OS and Parallels version information.