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
Different universe different rules. Besides we already saw difference between mark holding back and actually getting serious back in season 1 when he got jumped while fighting machine head. Homie went from getting dominated to dominating in two seconds.