How your Mac can use less energy and power, run its battery down less, generate less heat, and keep its P cores for the work you want it to do for you.
App Tamer
How you can use the taskpolicy command to confine all the threads of a process to the E cores, as a brake, but there’s no accelerator in macOS.
Can you get Time Machine to back up faster by turning I/O throttling off? If so, it this something to do only for large backups, or can it be set as the default? Does it also affect other background processes?
The Eclectic Light Company 