Breastfed/bottle question

Tonight we gave our Lo a bottle with milk I pumped. She’s 3 weeks and won’t sleep through the night and is fussy a lot. She had a little over 5oz of milk and gulped it down within 2 minutes and still wants to feed. Online says it should take 15-20 minutes to bottle feed! I know the nipple is to fast, it was a bottle that came with the pump. But does that mean she’s starving? Makes me feel horrible because I’ve been pushing to breastfeed her. Can you over feed a baby? Would it be okay to still let her nurse if she wants? Ftm😂🤷🏻‍♀️