I actually made a guide about this on a different community that I was playing at the time, check it out:
https://cloud-gaming.co.uk/forum/index.php?/topic/27491-how-to-capture-your-gameplay/
If you have an NVIDIA chip and want an easy way to record your gameplay, download
ShadowPlay. You can edit your videos using
Davinci Resolve or any other editing software.
If you don't mind a bit more of an arduous setup for likely better results, check out
OBS Studio. I've been meaning to start using it myself when I find a minute to get it set up.
All of this being said, the issue you're facing could just be a problem you're yet to solve and Medal could still be an option for you. Take a look at their
support page.