I don't know if anyone else noticed this but when I was trying to figure out what is better upgrade from vault I realized sim numbers are worse than last week. I am keeping record of my sims and I was on 5153 / 6514 (Patchwerk / dungeon slice). This reset I am on 5093 / 6114. Same gear (I upgraded my legendary head to 235 from 225 - same stats), same conduits, same talents. In sim it seems I am getting less dps from agi.
You use a different weapon enchant than before. That's what I instantly see.
Lightless Force is an aoe enchant, if I'm not wrong - obviously you do more dmg with it in dungeon slice.