Each child's feeding patterns and needs are quite different. However, if the T1's eating less has resulted in weigt loss or less weight gain over a period of time, best to show her to your pedia.
this might need to discuss specialist if you are really concerned. but each baby is to their own. some drink more, some drink less. maybe t2 drink lesser but more frequent 😊
Children's feeding patterns may vary. But if it really is causing a concern, you may want to consult with your paediatrician to be sure what best you can do.
Mariam Rudy