Ok so I know babies slow down their growth as they get bigger, just wanting to check that DD3 is still in the realms of normal

At 4 months she was 6.1kg, length 65.5cm and head circ 41cm

At just over 5 months (like 5.5 weeks after her 4 month weigh in) she was 6.5kg, length: 67.5 and head circ 42.5cm.

So thats 400g, 2cm length and 1.5cm h/c. Is that enough? She feeds every 2-3 hours during the day, should I be feeding more or offer the other side as well? She still feeds overnight, last night she fed when I went to bed (11pm) and then fed at 3am for an hour. Usually she feeds pretty quickly so having her attached for an hour was a bit draining!

Any advice? reassurance?