Baby never eats all at once

Anyone else’s baby eat a couple ounces, act uninterested, and then if you try again 10-15 mins later they will drink a few more? My daughter (8 weeks) always drinks about 2.5-3 ounces and then starts crying and pulling away from the bottle. If we go play for 10 mins and try again she will eat another ounce or two. Just wondering if this is normal. Its very rare she drinks her whole bottle at one time. Also, don’t think there are reflux issues bc usually during that gap she is lying flat either playing on her playmat or doing tummy time and doesn’t seem to be bothered.