Hi there! I see you're having trouble with the Rumble app being very slow or not loading ads properly. Let's work through this together to get you back on track.

First, can you tell me a bit more about the issue? Is the app slow in general, or is it specifically when an ad tries to load? Also, are you connected via Wi-Fi or wired, and do you happen to use a VPN or any ad-blocking software on your Windows machine?

In the meantime, here are some initial steps you can try to improve loading speed and ad performance on your Rumble app:

1. Check Your Internet Connection: A slow or unstable connection could cause delays. Try switching between Wi-Fi and a wired connection if possible, or reset your router to improve speed.

2. Restart the App: Close the app completely and relaunch it. On WebKit (which I understand you're using), just refresh the page or close and reopen your browser.

3. Clear Cache and Cookies: Sometimes cached data can slow things down. Clear your browser cache and cookies to see if that helps speed things up.

4. Disable VPN or Ad Blockers: If you have any VPN or ad blockers enabled, disable them temporarily as they might interfere with ad loading, which could cause delays before the video starts.

5. Update Your Browser: Ensure you're running the latest version of your WebKit browser on Windows 10 to avoid compatibility issues.

If these don't help, I can guide you through some more detailed settings or check for any known issues on Rumble's side.

Does any part of this resonate with what you've tried so far or notice on your setup?