Games, Audio and Video Editing, Motion Graphics and code compilation all work faster and/or better on 10.13.6 compatible hardware than all subsequent versions of MacOS.
There are very good reasons to remain on 10.13.6 (High Sierra) of MacOS that extend to all manner of other creative endeavours on a Mac. This problem is not limited to the age of the Mac.
TL DR there are good reasons to stay with 10.13.6 for creative endeavours, even on the newest hardware able to be 'downgraded' to this version.
