For each video, it creates a ffmpeg64.exe process. I suppose that isn't too bad. Each one takes about 35MB of memory so it could quickly add up if we have 20 or more videos.
If this can be reduced, great.
The real issue though is that it never ends the process during your session. Closing the tutorial menu and re-opening creates 5 new ffmpeg64.exe processes but doesn't kill the old ones.
After trying that for a few times you end up with something like this:
{F7856}