Input Display solution for Razer Tartarus?

I’m searching for some kind of program that I can use to record a visualizer for my razer tartarus. I don’t need anything particularly fancy, but I’m trying to find a solution to be able to show my inputs along with gameplay. The chroma lighting is too slow to accurately capture the inputs from, so I cant really use that. I feel like I’m the only person who has ever tried to find this because I can’t seem to find any leads, so I came here. Any ideas? Thanks.