is it better to clear dungeon early vs later game?

I have been working toward clearing more and more of my dungeon… for the monsters, loot, etc. I was just wondering if the equipment loot scales with level? Is it better to try and three crown some of the legendary loot early for a equipment boost early or is it better to wait until I further along in the game and can benefit more from the higher level loot?

Thoughts?

Wait until you are in high level (over 80) But you can do it also at last level 120 to get all benefict but it’s too long to wait until that moment.

thanks!