1. Go to the Photos app on your Ipad
2. Find the video with the issue and select
3. Press Edit on the top right hand of the page
4. Locate the timeline at the bottom of the video...it kind of looks like this
sample: lllllll l l l l l l l l l l l l l l lllllllll
5. Simply slide your finger from left to right until the bars are all evenly spaced. I.e. liked this: lllllllllllllllllllllllllllllllll|lllllllllllll
https://community.gopro.com/t5/GoPro-Apps-for-Mobile/Videos-playing-in-slow-mo/m-p/109614/highlight/true#M4269