MS TEAMS is working very slow and all profile picture of all person int he channel turned to grey color

Dear @Suphawat Thongsawang,

Thank you for posting your question in the Microsoft Q&A forum.

Based on your description, Microsoft Teams is very slow and all profile pictures and channel icons appear as grey placeholders in the desktop app, while everything works normally on another device and on Teams web.

The issue appears to be related to the Teams desktop client on your device, rather than your account or service, since it works correctly on another device and in the web version.Here are some suggestions you can try:

Try to check the connection of your device

• Ensure your device is connected to a stable network, try switching between Wi-Fi and a mobile hotspot to see if there is any improvement.
• If you are using VPN, try disconnecting it temporarily.

Update Wi-Fi/network drivers

• Open Device Manager > Expand Network adapters > Right-click your Wi-Fi adapter and select Update driver > Restart your device after updating

Clear the Teams cache

• Exit Teams completely (right-click the Teams icon in the taskbar and select Quit)
• Press Windows + R, type:

    %appdata%\Microsoft\Teams
  

• Delete all files and folders in this directory
• Restart Teams and sign in again

For detailed information, please refer to this article Clear the Teams client cache

Fully close background processes

• Open Task Manager and end all Teams-related processes before reopening the app

Check device performance

• Ensure your device is not under heavy CPU or memory load, as this can cause Teams to run slowly

I hope my information above can help you resolve the issue, if you have any other questions, feel free to reach out.

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