Hey! As of 0.8.25, this seems about right. The v1.0 update will bring a new graphics backend using Metal rather than OpenGL which may reduce the CPU/GPU usage a bit.
However, keep in mind that on macOS 41% is a bit misleading. On a Mac Studio with 10 cores it's 41% / 1000%. I see a similar amount of usage on my development Mac (a MacBook Pro M1 Max). In addition I've noted that MiniMeters sometimes gets put on efficiency cores. You will see a higher percentage on those cores as well since they are less powerful.