Hungry baby!!! Advice please!

Hi ladies. I am a FTM and am after some advice. My baby boy is now 5 weeks old. He was born 9 lb 1.5 oz and has always loved his food. He has been formula fed with SMA since day one. In his first week he jumped to 4 oz per feed. We’re now on 5-6 oz and a lot of guides say he should be having about 5 feeds on average per day for his weight and amount in ounces. I have given up on looking at age as it doesn’t match up with my big boy! My worry is that he’s pretty much on double that, still eating at least 5 oz every 2/2.5 hours. He burps well and he’s very rarely sick! Over the past couple of days we’ve tried one feed of hungry baby formula and he still wants his normal feed 2 hours later! And he eats it! Could he be eating out of habit? I try to do stuff to distract him from being hungry to try to make him go longer but it only works for a short period. I have the Health Visitor coming next Monday so will seek advice from her too but usually they’re so “by the book” I’d like to ask Mum’s with experience! Thank you ladies!