Moving that affix to boots/shoulders is a bad idea, sorry. That’s akin to trading the Plague for Ebola … you’d force players into using RoRG with sets then - except Tal Rasha or LoD/LoN, obviously.
Adding a dps buff after Teleport is the better choice. Anyhow, 150% would still be meager. It’s better than nothing, but honestly, look at the damage buffs on viable dedicated legendaries… or Deathwish. You’d need at something like 300% general damage, and tada - we’ll have Deathwish Reloaded, another mandatory item.
We need the exact opposite… Aetherwalker has to go and the effect has to be the skill default, plus further changes (a post my ideas on Teleport)…