The intelligence stat had very minimal and almost no direct effect on the cultivator's mindset and intellectual ability, like Adam was coming to realise. Its main effect was on the cultivator's ability to wield and manipulate energy and their sensory ability, which increased as the cultivator's overall power increased.
Adam didn't feel any smarter, although he could memorise many things with ease and replay previous events, but Adam felt as though that was an effect of his Hunter's mind and not his intelligence stat.
He was beginning to realise just how different he was from normal cultivators, and how his unique constitution, that the Dungeon System gave him, allowed him to have an advantage over cultivators.
While the stats that the system used for him were then used to measure the strength of others, but the way others increased in strength was much different to Adam, who would strengthen every aspect of his body as he hunted in the dungeon.