Upon their meeting, Sarutobi Hiruzen greeted them with great warmth and politeness: "Welcome, our guests from Loulan, to Konohagakure. Jonin Minato will be here shortly. Since you've traveled a long way, please take a seat and rest."
Judging by Hiruzen's present demeanor, had Li Fusheng not previously read certain conspiratorial analyses, he would likely have shared Naruto's view, mistaking him for a kindly, benevolent old man.
Although Hiruzen had only just turned fifty, the immense administrative burden of leading Konohagakure as Hokage made him appear far older and wearier.
Chapter 60