Dancing Strikes pause

Encountered a bug I haven’t seen logged with Dancing Strikes.

I have it mapped to my right mouse button. When I hold down the mouse button it will pause after the second for about a third of a second and then again on the third strike.

What’s odd is if I have Dancing Strikes mapped to both right mouse button and Q on the hot bar (so in both places) there is no delay and it continually fires off and moves. But as soon as I take it off the Q it goes back to the delay.

Also of note when I have both Q and RMB tied to dancing strikes and hold Q for the effect the pause is there.

Edit: Attached screenshots showing the DPS is different for each different skill slot.