Lee Sin Q not hitting the scuttle crab's tail.

So recently i started seeing Lee Sin Q missing the scuttle more and more often like it does here this happens quite a bit and its frustrating , my opinion is that it should actaully hit the crab instead of going by it . This might happen because when the scuttle crab is moving , its htibox is always a little bit ahead of him , that makes the visuals quite disorienting.