Feeding Issues

Hello, auntie here... having trouble getting little one to eat from her bottle... any ideas of what I can do to change that?

She is also breastfeeding.

I usually have her in a upright position and bottle at a 45 degree angle. She gets quite upset. The nipple flow seems to produce a ton of bubbles after she lets go.

I do my best to prevent the bubbles, but they still come and she ends up having to burp at least 4x each feed. Help😫.

I want to get better at this...