She just doesn't know how to play the big players yet. They hit winners, so Ash makes errors. No logic.
By nature she's not a grinder or a fighter, she likes dominating from the front, so it's not surprising really. But it's something she has to learn.
Also I hate her return stance. Why does she face the forehand side, feet close together... Makes no sense and something she has to fix.
But, I was waiting for this moment to post something which will cheer you guys up: