This is a skill issue which I don't think they can really fix. For a recap what happens when u press zen there is a small delay that makes it so you can't asura right after it. If you try to asura a skill failed message will pop up in your message box. I don't really know why this happens and why asura is the only skill affected by it since I cam spam tss as fast as my net will allow me without a skill fail message popping up. However, I'm not so sure that removing this will have a huge benefit for people with high ping. Sure they won't get that message anymore, but it will most likely benefit players like me with lower ping more because I will be able to spam at my full potential without having to time that second and a half delay between asuras. Even so I don't know how that delay was put there, but I still think it's worth a test.