Tailun fought against Alex to the best of his capacity, but he realized just how severely weaker he was than Alex.
Fighting against Alex, he felt as if he was fighting against an actual Extolite. He had sparred against actual Extolites and had nearly the same amount of trouble.
The man before him was not an Extolite, but compared to Tailun, he might as well be.
It had been 50 years since Alex finally got a chance to fight at all. He had almost grown rusty. But, as he fought Tailun, the natural instincts of his body returned rather quickly, and the battle got even easier.
Tailun was not weak at all. Physically, he had about the same level of strength as Alex. What he didn't have was Alex's years of training and battle experience, and that was all Alex needed to defeat the man.
He didn't use his Qi. He didn't use his Blood Aura. He didn't use his Spiritual attacks.