2oz every 2 hours is perfect... A newborn should never go more than 2-2.5 hours between feedings
2oz every 2 hours is what my son ate he was formula fed. He started on 2oz.
That seems a little much.
2 oz should hold her over for 3 hours because formula takes longer to digest.
Make sure she's actually hungry and not eating just to eat. If she's smacking her lips, moving her tongue around, go ahead and feed her.
My daughter is on formula and i feed her every 3-4 hours. Their tummies are so tiny. Obviously don't starve her. Just try other things to calm her down if she's crying before you stick a bottle in her mouth