I use Vegas Movie Studio. It's been a Sony product for years but I think they sold it off recently. Takes some time to learn but can do anything you can imagine. Price is reasonable, probably less than $100. Rendering edited video takes a while regardless of the software. The more powerful your computer the faster it will go.
Ok so after a lot of faffing I got it edited, sadly I didn't get to fly that day but our 12 year old daughter did and I got to test out my new camera so all was good
Password to enter is " Kitelife " if you would like to watch
Sent from my iPhone using KiteLife mobile app