Marvel fan here - it's just not good
I went in with no expectations - just a guy that usually loves Marvel movies.
Frankly, I was bored. I didn't connect to the characters, it was really slow-paced, nothing groundbreaking, tired action... I wanted to like it but it was just dull and the directing seemed generic and uninspired.
Sprite would have been an interesting character - adult in a child's body - but it wasn't explored enough. Ikaris was so wooden and bland I felt nothing at the end for him. You have Angelina Jolie in your cast and she's sitting in the background looking pretty the whole time.
It seemed like a missed opportunity.