Over the past year, Microsoft Teams has undergone several performance enhancements aimed at improving interaction responsiveness and creating a more fluid user experience. Key improvements include transitioning from the Angular framework to React, upgrading Electron, reducing re-rendering, and optimizing code for messaging and calling experiences. These enhancements have led to notable improvements in latency and page load times, such as a 63% faster compose message box and a 25% improvement in switching to channels.

Users can expect significant improvements in messaging and meeting experiences. For instance, latency when scrolling over the chat list has improved by 11.4%, while switching threads in the activity feed has improved by 17.4%. Additionally, the time to switch to a channel and open a chat window has been dramatically improved by 25%. These enhancements aim to provide a more responsive and efficient experience for users.

Microsoft measures performance improvements by analyzing anonymized data from the 95th percentile of all desktop users globally. This approach focuses on users with low-end devices and low bandwidth networks, ensuring that the metrics reflect a broad range of user experiences. By concentrating on the 95th percentile, Microsoft can identify and prioritize enhancements that significantly impact overall user satisfaction.