148 votesViktor Kotai commented
This is CLEARLY making the app REALLY slow. Almost unusable. We use it as main communication tool in the company and it saves history forever. Therefore scrolling up just to see messages from yesterday takes ages. I have 8 cores i7 + 32G RAM + SSD only machine + corporate LAN internet access. This is ridiculous !! The whole MS product sweet is a joke for large businesses (over 10k employees) if you ask me cause it is not efficient and anything but fast.
Performance has been and continues to be a big focus area for Teams. One main area we have made improvements in is responsiveness for the most frequent user actions of switching between Chat, Channel, and Activity. We are also focused on reducing resource consumption and application load time. More improvements are on the way.