He knew he still had an advantage in his perception but he didn't know how much. Now he knows the limit of what he can accomplish.
Next is the new LIMITER stat. The limit on his body is like a safety lock placed there by his subconscious to protect his body. It will limit how much of his physical capabilities he can use. He can remove it, but there hasn't been a reason to. Then there's the limit on his soul power which he placed there by himself so that his body won't explode. That's why his spirit stat is just at the limit of his stage.
His body might have a limit on how much of his soul power it can handle but it cannot inhibit its inherent calculating and sensing abilities. That's why his perception is still high. The radius of his divine sense has been reduced to 20 units because of that limit but nothing can escape his notice within this small sphere of influence. His sensing abilities might not rival an origin god but no sovereign can compare to it.