I just think it's hilarious what they are doing with Supes. He is at DoS stats most of the time, but he also mentioned that; while he is usually weaker than what he was back in post-crisis, his power supposedly fluctuates due to the sun being different than the one from his universe(even though again; this is supposed to be the same universe).
Meaning: he isn't going to be a very consistent character when it comes to showings. When the writers have a character say that their powers are "fluctuating"? You can bet they are going to have some inconsistent showings. A lot of them.