The story arcs were fine, the acting needs to improve. As well as the dialogue, which means the writing needs to get better. I think another poster mentioned it before, but I like how each episode they had a mission they needed to accomplish, better than the typical villain of the week approach that a lot shows like this attempt to pull off.
It’s Xmen though, it needs a menacing villain. Polaris, the size 1 blonde, and Cody Bell were the bright spots this season.