Breastfeeding and formula

So my baby is a little over a month old, he lost some weight after birth which is typical and I had problems latching him. We supplemented with formula in the hospital and when I got home it was so hard to get him to latch.

Since we gave him formula he is used to the faster flow of the bottle- he does latch better now and I hear him swallowing and that- but I don’t think my milk is fully in since I still give him formula after cause he is still hungry. I want to exclusively breastfeed but I feel since he is used to the fast flow of the bottle he will always need it and I know this means my milk won’t come in fully.

Hope this makes sense - just want some advice to taper off the formula obviously I want him fed so if after breastfeeding he still wants to eat I will give him formula. I also do pace bottle feeding but he still drinks fast. When I do pump not much comes out recently since I cut down on pumping to have more milk ready for him when he eats.

Not sure if anyone has had luck getting a baby off formula after a month old.

Long question thanks for reading :)