Hear me out now guys but

What if Jasper needs glasses…?

We have her evil squinting when we first see her.

That’s not a lot to go on for eyesight issue sure, but then you have her fights. Just being overall kind of sluggish and being hit a lot doesn’t really voice a lot for a top fighter elite right?

Then you get from Malachite, more angry evil squinting, but then in a couple frames,

She seems so shocked to see Alexandrite with the bow, as if she just now noticed it. But wasn’t see looking right at Alexandrite? Surely she would have seen the bow if her eyesight was ok right?

Then you get this squint eye look, which I feel they really emphasized her eyes not being entirely open a lot in the Beta/Earthlings episode, even highlighted again when she corrupts. This cap is taken literal moments before Amethyst attacks her with the whip. She should have seen it coming miles away, weapon is out at the ready and they already have beef with one another. So then why

Does she miss? She even looks shocked in the frames before this as the whip is already at her face as if she really didn’t see it approaching. She had plenty of time to prepare.

So I conclude that either Jasper is actually a really shitty fighter with bad hand-eye coordination or she is defective like most of the Beta gems: She has bad eyesight.