No doubt about that she is OP, but she ain`t the longest living OP legend. Pathfinder and Wraith was pretty much broken through the most of the game lifespan.
As far as Horizon goes on, its ridiculous. Look what Albralelie have to said about her. He is totally right on everything.
Her tactical need to have the same treatment as everyone else, aka no heals allowed while on it, lower the strafe speed by a lot, and on top of that her accuracy should be as everyone else when on Zip or so.
Then she will be fine, still super strong, but fair.