Takes a bit of getting used to how to fly this thing, but it's worth the effort and a must-have for vid makers. My latest creation here at Cathedral Rock with the free 2020 Indycars certainly benefited from it
https://youtu.be/PCtHPyrvT2A
In addition to recording in slow-mo, another tip for maximising FPS folks (with this app or others) is always turn off the python apps that you aren't going to be using for that shot/scene (or race) before clicking 'play' or 'drive' (CM makes this super-easy to do).