The original YT video I did of the Stafford Boat Club was edited in the DJI Fly app on my phone.
I realised that the Fly app, although good for roughing out a sequence, only uses the lower resolution files sent from the drone during flight (albeit rendered as 1080p), therefore the better quality and smoother footage (no drop out of frames) was apparent when I eventually got around to uploading the raw 4K footage from the MicroSD Card onto my PC.
This video was created using the 4K files edited start to finish in Filmora. Hopefully you agree it’s better than the 1st video I uploaded! Original video can still be seen on my channel at
https://youtube.com/channel/UCiQAtdb3FjnJSW2taJjJzQQ
for comparison 