Although it appeared as though Randy was getting stronger as he endured the many attacks from the Gladiators, he wasn't truly getting stronger. Instead, his body was becoming accustomed to the strength that was being transmitted over from the assimilation of his temporary attributes.
This only allowed him to get better control over his body and not actually increase his strength. According to his understanding, temporary attributes, to him, were simply a kind of potential attributes or enhanced attributes. As such, they didn't truly feel like his genuine strength.
However, once they were turned into his permanent attributes, he could feel his muscles adapting to the new strength and gradually adapting to it as the fight goes on the stage. With that being the case, he found his current strategy very effective in increasing his permanent attributes and his control over them at the same time.
