What happens if you don’t pace feed a bottle fed baby?

My girl is 3 months old and I just learned about pace feeding and haven’t done this up to this point!

I’m pumping, so she’s having breastmilk, just in bottles.

She does take her time eating and takes breaks herself, but I’ve never intentionally pace fed.

I recently tried to pace feed and she got so upset when I took the bottle away.