Is there a way to selectively enable achievements on a per-game basis?

This is really just a minor inconvenience, but if I leave achievements enabled and play random games that I don’t plan to complete, those games affect my “Average Completion” rate on my profile. So, I usually just trudge through the menus to enable and disable it globally as needed so this doesn’t happen.

Is there a faster way to toggle achievements on/off, or preferably to enable it only for games of my choosing?

I would think an override would work, yeah.