A. 1. Limit the number of active chats and channels you are part of. Leave channels that are not relevant to reduce clutter. 2. Regularly clear your Teams cache by going to Settings > General > iPhone Storage > Teams and selecting 'Offload App'. This will clear temporary files and may improve performance. 3. Restart the Teams app and your iPhone to refresh the system. 4. If performance issues continue, consider using the web version of Teams on a browser for better performance.