2 week old eating a ton

My 2 week old is pushing 10lbs (was 9lbs 7oz at birth) and eats 3-5 ounces per feeding. At nights when she goes 4 hour stretches sleeping she can even do 6. I know this is a ton, should I be concerned? Her stomach never hurts but it seems like she just never gets full. She is breast and bottle fed by the way. Does 20-30 minutes when on breast

And if this is too much what do I do when she’s screaming from still being hungry?