For days I was getting insane, I could not figure out what was causing this insane lag.

Hovering over players of same faction in dalaran or in a instances would causes me to get 2-3 seconds freezes until their gearscore was known.

Disabling Groupie fixed it, please look into this :)

Hey @wazerstar Sure it's not TacoTip causing it? You can't run both without lags.