Bugged Unique Dusk Vigil Ashen Staff!?!?

Early on I happened to get the "Dusk Vigil Ashen Staff" And I just happened to be using Ember Fusillade skill,

I noticed every time I cast "ember fusillade" while the staff is equipped my character glitches for a fraction of a second during the beginning of the animation like a lag or a quick sudden stop glitch.

It seems very annoying every single time I cast the that skill with the staff equipped my character just glitches out like a lag spike. when I unequip the staff the skill works fine and my character does the animation normally.

Is this happening to anyone else?
Am I doing something wrong?

I have exactly the same issue... It's unplayable... Was really excited about the staff :(

Same here, for me it's kind of like a rapid and consistent skipping that occurs during casting while moving. I tried to adjust graphics settings, no luck.