Cool, but kills performance

Im running a Mac Pro (2013) quad core xeon with 32gb of ram, dual graphics cards(2gb AMD firepro) with dual 4k displays. This app was using 87% of my available CPU, and 1gb of ram, wow. I had a mountain scene, the time, and weather on screen at the time. Initially after the app launches it uses far less system resources, but after an hour or so it jumps up. This might be a good app to show off your computer with, but with this kind of performance i cant imagine using every day. Looks pretty cool though.

ScottsSnow about Mach Desktop 4K Free - Ultra HD Dynamic Motion Wallpaper