When enjoyment drops, performance follows. Everyone has a different threshold for how long they can maintain performance before enjoyment drops.

For me it was four years working 14-16 hour days, seven days a week.

But eventually enjoyment drops, and while performance can be maintained for a while with low enjoyment, eventually it drops too.

A smarter approach is to alternate high performance/high enjoyment with low performance/high enjoyment, because this allows you to stay at the top of your game.

So for the A-personalities that’s the reasoning behind why it’s worthwhile just having fun sometimes.