Although Apollo was holding up for now, his situation was pretty bad. After all, having one hand nearly torn off, and the other mangled in pieces was not the best thing in the middle of a fight. Realistically speaking, Kylan should be able to deal with Apollo easily.
However, Kylan relentlessly continued his assault, even adding more golden spikes on top. Despite his arrogant look, he was never one to take things lightly. Perhaps it was because Kylan found fighting to be a chore. As such, instead of playing with his food, he finishes up quickly.
That meant Apollo's situation was only getting worse by the second. He wasn't even relying on his bokken, but his hand made of flesh and blood. The fact he was even able to block the golden spears in the first place was because of his instinct.
But every time he blocked, he had to pay a price.