It might actually be that your 1050 simply don't have the horsepower to record + game. Its a very low tier card after all. So that might be why you are struggling.
I take it its a laptop or prebuilt you are using, so its likely not a full 1050 either, but a mobile version with slightly worse stats.
I myself run a 3070, but that is far overkill for disco. I rarely if ever see it go above 25% utilization (also a DX8 issue)
My CPU, a 5900X is practically idling while playing.... but that is a API issue related to the game engine (DX8).