Why does my baby act like she isn’t getting full off of breast milk

So my daughter is a week old and I have been trying so hard to breast feed but my little girl doesn’t act like she gets full at all drinking it

And it sets up for her to have a messed up eating schedule (due to frequent feeds)

I tried using formula (enfamil) with her and it worked out good, I would like to breastfeed her but if she isn’t getting full from it i will go fully to formula.

(I have also been pumping so I could see what she’s getting)