When they talked about the energy the glass guy had I shrugged it of as typical power explanation. But they really went all out and showed the destructive power in a I haven't seen often.
An unexplained circumstance doesn't mean it's an impossibility. She might've rode on something faster than our Tang girl. Considering that she's the daughter of the leader of an organization, while out Tang girl can't even afford to buy noodles without selling off the spare parts for their ship, it makes some sense that the small girl have access to faster transport, and thus able to arrive at the same time.