She's probably waking early because her nap starts as early as 11am. If it were me, I would look at slowly pushing A time in the morning (add 15mins every couple of days) until her nap starts around noon and then putting her to bed no later than 5.5hrs A time from the time the nap ends. I don't think putting her to bed later without adjusting nap time will help. She might get overtired from the long A time before bed and that might cause even earlier wake ups,.
How early does she wake up?
Also, I probably wouldn't let her nap longer than 2hrs... sometimes too long of a nap cause cause early wake ups. How many hours does she sleep in a 24hr period?