Lan Wangji looks over his shoulder as she speaks, just for a second before keeping his focus on the rapidly approaching landing.

"Yes. I was proficient in this at age fifteen, it is a very useful skill so I have kept improving until I was..." he pauses just as his feet start gliding over the ground again.
"Over two hundred. If I had all of my strength that would have taken half the time to cross."

He gently taps down onto grass, walking forward a few steps to absorb the momentum before halting and looking around the area.

"But it has given me your delightful company, so I do not mind."