Feeding help!

My 2 week old is formula fed and taking about 2.5 oz ever 2.5-3 hrs. He’s acting like he wants more but every time I let him take 3 oz, he has a HUGE spit up like 30 minutes later even after a couple of good burps and keeping him semi upright for a few minutes after bottle. He almost never have any spit up immediately after bottle or while burping.

Any tips? Should I keep stopping at 2.5 for a few more days and then try letting him go to 3 later to see if his tummy is ready for it? Note: we are about to switch to sensitive formula bc of some nighttime gas/fussiness issues so I’m hoping that could help.