Please note the following.
There is no milk better than breast milk.
All the others are same quality in differant names.
You continue farex 2 till 2 years of age and then go to normal dairy milk-
Do not keep changing the milk.
How you must be giving solids,fruits, vegetables,etc and milk intake will be less.
Your child's weight gain is OK for her birthweight
and present age.
So do not worry.
All the best