I use Blender Nearly Every Day. Can Blender render video similar to the GoPro Studio Flux feature in GoPro Studio? Its the only reason why i use gopro studio and its extremely slow. GoPro no longer supports it. I use it in Stop Motion clips and its very useful in smoothing out the video. Below is the description of flux.
"Flux™ enables super smooth ultra slow-motion and fast-motion speed changes. Flux analyzes the footage frame by frame, inserts new frames as needed, and blends them all together to smooth out the action. "