I've edited some footage over the same terrain (and the next day, with the side track off to Pai) - have it down to 24 minutes, which is OK for playing in the pub (set to commercial music).... but today's effort will be to get it down to five minutes or so and non-commercial music to upload.
My GoPro 7 developed a glitch recently (I will try and get it repaired) - so I grabbed a new 9. Despite visiting 5 shops, I couldn't secure a battery charger for the new style battery - nor the replacement side door which allows external power (a US$20 accessory). I wasn't very impressed with local retail.