Agree with the other poster, this is bad advice, and double bad advice to direct a new user to the command line where they could really do some damage to their system. Avid and Adobe do put out bulletins advising users about updates which could effect the operation of their software.There are command line tweaks you can make and software that supposedly tweaks the system and ram for best performance but honestly as long as you update your device regularly and don't fill up your ssd to 95% you are good!
Better advice. Just setup you Mac how you like it.
Out of the Box these days, Windows and Mac OS require very little to tweak, most of it's just interface stuff to suit your personal preferences. It's not worth tweaking it like it was in the older days to squeeze out a bit more performance.
Turn off auto updates. Install your audio/production software and make sure it all works.
When updates come out, check with the software vendor if there is a conflict before updating.
Never update when you are in the middle of a critical job.
I've gone months without updates, my production is worth more then a patch.
Implement some sort of backup. Time machine is ok but can be a resource hog sometimes.
Poke around the UI and see how things work.
Otherwise..
Enjoy your new Mac!