Kalista attack speed bug [Gameplay]

So ever since a few months ago I noticed a weird bug with the the attack move click feature with Kalista. When you use attack move click, Kalista attacks at a significantly lower attack speed than she actually has, especially if you use attack move click consecutively. This was only a minor problem before preseason 6 but ever since preseason 6 started, the problem got significantly worse. Please hot fix please, I am a frequent user of attack move click.