Why can a Kryptonian beat up a Kryptonian this easily? Given they are equals, but among equals, there is the option that there is a tier of strengths. This version of Superman seems so weak.
I think in the previous episode Tal was trying to use some crystal to put Kryptonians minds into humans but Superman used lots of heat vision to destroy it and when he uses too much he loses the solar power his cells absorb. So Supes was weakened whilst his brother was normal