Wake window should only be 45 mins to an hour. Feed her on one side, change her, feed her on the other side, then burp her and put her in her pram, and rock her off in the house and then you can chill for a bit too.
My son isntwo weeks today he's got 2 (somedays 3) awake periods through out the day/late evening that are between 1.5-2.5 hours long hell wake for a meal and then stay up till his next meal then sleep again I don't rock him though we sit on the bed and play/tummy time sometimes he just lays between my legs and I talk to him while doing stuff on my phone or computer
At this point their waking period is about 1.5 hrs is she staying up longer than that at a time?