Bottle feeding question

Hi Moms (and dads like me). I would like to ask about bottle feeding for my two (2) month old baby. First, I would like to give you a brief story. My wife doesn’t have that much breastmilk and medyo hirap talaga dumami. Meron but may issue kasi kami sa latching with baby. Minsan ok sya, minsan hindi. Kaya most of the time, naka-bottle feed sya. Now, my question is, may limit ba kayo (based on your experience), sa kung gaano kadami ang ibinibigay niyo for baby in a certain time? Nung nagstart kami, we give her 2oz. every 3hrs. Ngayong nasa 2nd month na sya, mas dumarami hinihingi nya. Nasa 3oz. na ang ibinibigay namin na minsan, nasa 2hrs and below lang ang pagitan. Ang nagiging concern ko is, minsan, ayaw nya pa din matulog. Gusto pa nya. Pwede ko pa ba siya bigyan as long as gusto niya? What are your experiences? Baka makatulong. Kasi nililimitahan ako ni misis sa pagtimpla e. Sometimes, I want to give baby another 2oz para masatisfy, kaso pinipigilan nya ako kasi nakaka-ilan na sya in just an hour. Any insights guys?