There could be several reasons why your Apple Podcasts app is taking a long time to load. Here are a few possible causes and solutions:

1. **Internet Connection**: A slow or unstable internet connection can cause delays in loading. Ensure you have a strong and stable connection. If you're using Wi-Fi, try moving closer to the router.

2. **App Updates**: If your app is not up-to-date, it might not work properly. Check the App Store to see if there are any updates available for the Podcasts app.

3. **Device Storage**: If your device is running low on storage, it can affect the performance of your apps. Try deleting unnecessary files or apps to free up some space.

4. **Background Apps**: Having many apps open in the background can slow down other apps. Try closing unnecessary apps running in the background.

5. **Reinstall the App**: If none of the above solutions work, you might want to try uninstalling and then reinstalling the Podcasts app. This can help to clear any temporary files that may be causing issues.

6. **iOS Version**: Make sure your device's iOS version is up-to-date. An outdated iOS version can cause compatibility issues with apps.

Remember to back up your data before making any major changes like reinstalling apps or updating iOS. If you continue to experience issues, you might want to contact Apple support for further assistance.