Quicktime h265 export taking abnormally long time (300+ hours)

Hi Snufflepuff,

It sounds like you're experiencing a longer than expected timeframe to export from QuickTime.

First, check out the information here: Export movies to other file formats and resolutions using QuickTime Player on Mac - Apple Support

Then, if you're still having trouble, check for any updates for your Mac and for QuickTime: Update macOS on Mac

1. From the Apple menu  in the corner of your screen, choose System Settings or System Preferences.

• If you chose System Settings, click General on the left side of the window. Then click Software Update on the right.

• If you chose System Preferences, click Software Update in the window.

2. Software Update then checks for new software. 

• If Software Update finds new software, click the button to install it. The button might be named Update Now, Upgrade Now, Install Now, or Restart Now, for example. You might then be asked to enter your administrator password.

• If Software Update says that your Mac is up to date, then no new software is currently available for your Mac model. Software Update shows only software that is compatible with your Mac.

Take care.

It should not take near that long.

Do you have any 3rd party apps that might interfere? Chrome, virus apps, "cleaners"??

I have not experienced this but Google background processes might intervene with movie encoding. So although I normally use Safari, I have Firefox as an alternative (Brave etc might also be good).

https://chromeisbad.com