How to Fix the Fast Video Playback Bug on macOS

If your GemHub video plays too fast after uploading it to YouTube from your MacBook, it could be due to the YouTube playback speed settings or a known macOS bug that affects video playback:

  • YouTube playback speed setting – Double-check that the playback speed on YouTube is set to “Normal.” Sometimes it may default to a faster speed.

  • macOS playback bug – This is a known issue on some MacBooks where videos can play at an unusually fast speed after export or upload.

How to fix it

The macOS fast playback bug is often linked to a temporary issue with the coreaudiod system process. A quick restart of your MacBook usually resolves the issue.

You can also refer to this helpful article for more details and technical guidance:
macOS Fast Video Playback Bug Fix (Coreaudiod Issue) – 9to5Mac