First off congratulations and welcome

At this age babies are very sleepy, and have very little stomachs meaning that it is important to go with their cues rather than the clock. You can encourage him to stay awake whilst feeding by trying to keep his attention, talking, stroking his face, massaging his hand...
I sometimes made two "courses" - so fed, nappy change when Lisi was no longer really drinking and looking dopey, then feed again (from the same breast as I was single side feeding). Sometimes she would have renewed interest, sometimes not and wanted to sleep.
You'll probably find that by 6 to 8 weeks he's much more awake and he'll have established a schedule, be that 2 hrs, 2.5, 3hrs. Some night wakings are to be expected, but they get much much easier to deal with as your body clock adjusts to the new situation too.
A great advantage of breast feeding at night (over formula feeding) is that you produce a great slug of the hormone oxytocin, a powerful sedative meaning both you and your baby get back off to sleep all the quicker.
Enjoy this special time!