Hello everyone ! My baby boy is 3 months and weighs 6 kgs.

I am concerned about his feeding. I feed him with Lactogen milk powder three times a day ( 90 ml per feed ) and rest is my feed.
1.) Is Lactogen best product or there is something better ?

2.) Should I change the product now with other brand or continue using Lactogen ?

3.) 90 ml per feed, if this much qty is ok or should I reduce qty per feed?
Kindly Advise !

Thanks :)