Big kalista passive bugs

I don't have a link for it, but it pretty much kill the champion: her passive is working a weird way.

First, you often end up walking instead of jumping when trying to use it, wich shouldn't even be possible with kalista as far as i know or even jumping in a random direction from time to time (or walking in a weird pathing between 2 aa). Then going higher than 1.6-1.8 attack speed tend to make the game freeze whenever you try to use your passive (and 1.8 attack speed on kalista isnt high considering that she get around 2.00 + attack speed usually).