Cydia not updating repos
If these scenarios describe your situation, you have two choices from a software perspective: Plex or Kodi.
As you already know, Saurik is yet to release a proper update for Cydia.
The Android version of Kodi is notorious for audio sync issues.
If updating your app does not help, you can adjust the delay manually by going to Audio Options Audio offset while a video is playing.
No matter what issue you encounter, there are some tried-and-tested steps you can take that frequently make the problem go away.
Updates: Always make sure both the Kodi app and any add-ons you’re using are running the latest version.
However, it’s possible only to see add-ons from a particular repo.