I find this strange. Zwift shouldn’t be handling the power the system uses, MacOS should be doing that. MacOS decides how much power the CPU can consume before slowing the CPU down, Zwift doesn’t have any say in that.
turbo boost is the main problem it seems. The mac will overclock to get the best performance it can. im not sure whos fault its is, but neither apple or zwift are going to change it soon.