hi barra, congratulations on your ds 
Don't worry, ime this is very normal for such a young bf baby.
It's kinda not what we expect is it? When i had ds i had in mw head the image of baby feeding for twenty, maybe thirty mins, they sleeping for at least a couple of hours. This isn't helped by well meaning (but as i know now, mis informed) people saying "is he feeding again!" etc.
The fact is this is how babies are ment to behave. But virtually everyone i know had ff, and as formula is harder to digest it does tend to knock them out a bit (i think of it as being like after christmas dinner). But the more frequent bf feeding is what's actually natural and normal iyswim.
As for sleeping it is very much a skill they have to master imo. Keep nights as dark and quiet as poss so they learn the difference between day and night. Encourage them to nap as much as possible, buggy, car, sling etc.
Personally we didn't bother with a routine at that age. They change so quickly and i found it easier to respond to their needs as they arose.
The good news is it soon settles down. I remember a distinct reduction in frequency of feeds around week 12. Half way there now.
I'd really recommend sticking with it. It does get much easier and will continue to do so, while ff will always be a faff.