Mac problems with Unreal Editors

As an new learner, when I install Unreal LanChar and install Unreal Engine 4.20.3. My computes will go to a weird that the temperature of my computer is so high and the speed of the fan of my computer at 7000 r/min. It always show the compiling shaders. Can somebody give me a hint for this ? thank you very much. As a Chinese student, please forgive my grammar mistakes.