Normally, holding down the skill button for dancing strikes would lead to dancing strikes being repeatedly cast consecutively and smoothly with only the cooldown as the limit. In online mode, the delay between 1st and 2nd strikes are slightly delayed, while the delay from 2nd to 3rd, and 3rd to 4th strike is 1sec+ which is too much. I think this has something to do with latency in multiplayer. Please look in to this thank you.
Testing this I have 71ms on ASIA NE server .