Is my 2 month old baby drinking too much?

Mummies, I need your advice. According to my formula milk packet, on average babies should drink 150ml per kilogram. My 2month old baby is 5kg and should be drinking an average of 750ml per day. But he’s drinking about 1100ml per day instead. Is this normal? I tried to stretch out his drinking time from every 2 hours to 3/4 hours but it’s so hard. The max I could go is 2.5 to 3hrs. Is this normal? Or is it the formula milk that I’m using which is causing him to not be full? Currently using Dumex Dupro.