After the rampage, the boost from Burst Mode wasn't as significant as before; Zheng Yichen felt as if he had hit a ceiling. Hitting this ceiling didn't mean his strength increases were completely halted, but rather that if beforehand a full ten-fold increase in effort yielded a ten-fold increase in strength, now that same effort might only result in a two-fold increase—or even less.
A ceiling...
This sort of limitation reminded Zheng Yichen of certain human bottlenecks on Earth, like sprinting, where top athletes find it exceedingly difficult to improve after breaking the ten-second barrier in the hundred-meter dash, and where maintaining that level is an achievement in itself.
"You would be considered merely a mid-level warrior in my world," the Fire Dragon grumbled as it recovered, eyeing Zheng Yichen, who had disengaged from combat, with some interest. It pondered making another move, but after receiving a glare from Zheng Yichen, it promptly subdued itself.