I pretty much know there is no solution to end up with more sharpness. I have been searching an answer forever. I have even read that You Tube will process sharper if the channel is one with many [1000's] of views which really seems unfair.

Hero Silver Go Pro 4. 1080p, ISO 400, Pro Tune, medium view... Those are I have found the best settings. Very sharp on my end, meaning on my laptop. I have even tried 4K Wide but of course through You Tube [and much time!] the results are the same.

Wondering if I am missing something here, maybe someone knows something I don't.

If you notice the stills are very sharp... not however at speed.

Thanks...