11 week old naps

Is it okay my 11 week old only takes 30 minute naps? I follow the suggested walk windows and sleep cues, he goes down about 75 mins from when he wakes. He’s able to fall asleep on his own in his crib but can’t transition through his sleep cycles. He takes about five 30 minute naps a day. When my toddler is napping I can hold my 11wk old for an additional hour 1/2 for his mid nap (that’s only if I’m lucky they nap at the same time). Should he be sleeping for longer stretches during the day?

(Note- he typically sleeps from 8pm-2am then 3-7am, give or take).