The files are so huge and the pixel density is so compressed that you need a heavy pc with a beefy video card to actually edit it without pulling your hair out.
You may want to check out a few other video converters such.
Miro Video Converter, miro Video converter is free and available to download at m/ make sure to grab as its the simplest video converter I have seen.
Online Shop for gopro cam 4k Promotion on Aliexpress.
Upload your footage now only 10 per 10mins of raw footage, pay if you like.
So how the hell do we handle it?