Hi! I understand that your Tubi app is running very slowly and you're unable to watch any movies. Let’s see if we can get you back up and streaming smoothly on your Windows device.

To start, could you tell me:
- Are you using the Tubi app through a browser or a standalone app on Windows?
- Have you noticed if the slow performance happens with all movies or only certain ones?
- Also, have you tried any fixes like restarting the app or your computer?

Once I have this info, I can guide you more precisely. But meanwhile, here are some general steps to improve Tubi’s performance on Windows:

1. Close and Restart Tubi: Fully close the Tubi app or browser tab, then reopen it. Sometimes, this clears temporary issues.

2. Clear Cache and Cookies (Browser):
- If you’re using a browser, clearing cached data can help speed things up.
- In your WebKit-based browser, go to Settings > Privacy > Clear browsing data, and select cache and cookies.

3. Check Your Internet Connection: Streaming requires a stable and reasonably fast connection. Try running a speed test to see if your bandwidth is sufficient.

4. Restart Your Computer and Router: This refreshes your network connection and device memory.

5. Update Browser or App: Make sure your browser or Tubi app is up to date.

6. Disable DNS Caching (Advanced): Some users have found local DNS caching causes slowness. If you’re comfortable with network settings, we can try this.

If these steps don’t fix the issue, I’m happy to help you dig deeper or guide you through more advanced troubleshooting.

Let me know what you’ve tried and any additional details you have!

Are you satisfied with this initial guidance, or would you like to proceed further?