I can really recommend feeding lying down and then sneaking off when she's asleep. You can get a comfy blanket on the floor or do it on your bed at this age since she's not moving.
Is she having any awake time? At that age both mine would be awake for a good portion of the feed/play/feed/sleep cycle. Are you trying to 'get her to sleep' too much? 60 mins of settling should really be 50mins of interaction and 10mins of settling I would think.
I settle for 15mins max then just get them up. In a few weeks she'll need less sleep and you won't feel like you spend the whole time settling.

