He’s what? 18? Basically nothing in viltrumite timeframe.
Literally gets dominated by Lucan using one finger.
Then he gets his ass beat by Thula, who has hundreds of years of experience minimum, mind you viltrumites get stronger with age, aaand somehow a pep talk allows him to almost kill her? What? Mind you, in the comics this Thula threw down with Battle Beast and walked away alive
It’s a wake up moment for mark. The fight shows mark his weak moments. He’s holding back all the time because he’s trying not to kill people but this is one of many fights for his life. This time he had training wheels (his dad) but next time… you’ll just have to see. Mark learns several times that holding back makes enemies stronger.