Katar attack on high ASPD char

Tested on GX with 192 aspd

There is something weird about katar "animation" attack (is it the correct word?) in hercules,
its different from official behavior, like there is "huge" delay between right hand and left hand attack.

Then i notices in chat log :
[spoiler]
[img]http://s4.postimg.org/488d4inb1/screen_Hercules000.jpg[/img]
[/spoiler]

And

[spoiler]
[img]http://s29.postimg.org/62tsvpwk7/screen_Hercules001.jpg[/img]
[/spoiler]

You see, sometime the left attack got doubled even tripled after right hand attack.

So my issue : The "delay" between Right and Left hand And the doubled/tripled left hand attack

Malufett please enlighten me.
Was it my mistook or the client showing wrong data?

Thank you.