Baby only able to lift head 45 degree during tummy time

Hi there! Hmm..seems fine to me. My boy is constantly forcing himself to spam all his developments 😅 I’m the one that always has to relax him and slow him down once in awhile as he gets too anxious and I can feel his heart rate going up 😂 However, my baby niece is slowly taking her time to try stuffs hahaha. So don’t worry too much, just encourage your LO more with some stretches or massages and give more tummy time. It really does wonders to help strengthen their muscles and also encourage more movement from them. 😊