Microsoft has updated the Photos app for Windows 10 to version 2018.18071.15310.0 .
The update brings support for using your GPU when encoding video, which should speed things up nicely.
The full changelog reads:
- Hardware Acceleration – There is a new entry in the Photo app settings that allows you to use video encoding with hardware acceleration.
- Bug fixes and various improvements.
The updated app can be found in the Store here.