Worried feeding time is too short.

[Ladylove]

Mummajj my DD did that, fed quickly and only ever took one side at a time- right up to about 9 months. Very normal. It means bubba is a clever little feeder.

[onthefly]

Sounds like things are going a bit better this time! They're all different. Are you familiar with what to watch to tel lwhether she's getting enough? That's the best way to know.

[~TT40~]

every baby is different. But just watch her wees and poos, and if she is gaining weight and you will soon know =)
I've never had to give Spock the 2nd side either. but she will happily comfort suck for hours on me.