The Files tab in Teams is connected directly to SharePoint, so slow loading times are typically caused by network latency or a temporary slowdown on Microsoft’s end, rather than an issue with your local setup.
Here are a few steps you can try to improve load times:
Clear your Teams cache
See this article for step-by-step instructions.
Check your network connection.
If possible, test on a wired connection or run a quick speed test to rule out connectivity issues.
Try a different Teams version.
If you’re using the desktop app, try the web version (or vice versa).
Sign out and sign back in.
Refreshing your session can sometimes resolve temporary performance issues.
If the issue persists, it’s likely temporary and should resolve once Microsoft’s systems stabilize.