He hasn't had much chance to try out this angelic strength the tea was supposed to grant, but Shepard seems pretty experienced, if the earlier brawl they'd ended up in was any indication. Wei Wuxian can't claim to have fought many, if any women, but Shepard seemed more than capable of holding her own and then some.

"I'll have you know I was one of the top five ranked cultivators, and it was only partly for my good looks."

Besides, he wasn't about to scar up a girl's face, so he aims his first couple kicks at the body instead, using his beanpole frame for all the extra reach he can manage. Just testing the waters, watching how she reacts, and pushing back, where he can.