Pan's move had immediately thrown off Qi Tian.
The flying sword that Pan used was his own, while the one Qi Tian was using belonged to Zhou Ping; he had yet to refine Zhou Ping's flying sword and could only barely control it, unable to maximize the sword's speed. That created a rather noticeable difference between the speeds of the two swords. During their earlier skirmish, this disparity hadn't been obvious, but now, with one in pursuit and the other fleeing, the gap between them quickly widened.
Qi Tian knew that he could not let Pan escape no matter what; if Pan got away and informed Manager Chen about the situation here, it might even bring Manager Chen himself over. Qi Tian currently didn't have an ounce of confidence that he could defeat Manager Chen, not even with the help of the Liuli Sand.