Try using this format:
Quicktime container
ProRes Proxy Codec (quality between 12 and 20 is fine)
Use this transcoding tool, TENcoder. It's free and fairly easy to use.
Get it at these websites:
https://portableapps.com/apps/music_...coder-portable
https://www.videohelp.com/software/TEncoder
http://codecpack.co/download/TEncoder.html
The files may be large, but they'll work, if you use VLC as the playback engine. I use 1920 x 1080 at 60 fps on my machine, and it works well.
Check the first post for more information on that.