How to reduce ffmpeg load?

Question

fmpeg

Good afternoon, tell me if there is a flag that will reduce the load on the cpu when transcoding from mkv to mp4 with the codec I need?
In fact, the conversion time is not important for me, I'm interested in whether it is possible to limit the use of cpu, let the conversion take 5 times more time

Answer 1

On windows, you can run it with

start /LOW | /NORMAL | /HIGH | /REALTIME | /ABOVENORMAL | /BELOWNORMAL программа параметры

Nix has nice for this.