3wk old only takes 2oz

Anyone else have a hard time getting their newborn - 3ish weeks - to take more than 2oz regularly? She eats every hour/hour and a half and loses her mind if I try and stretch her out so she'll take more. She isn't always falling asleep either, just refuses to eat more. I've seen posts that babies of the same age are taking 3-5 every 3-4hrs.

My first didn't do this. Tired of feeding all day. Tired of washing 16 bottles everyday. Tired of wasting formula.