nap time nightmare PLEASE HELP!!

Ok this adorable little heathen has started taking naps in her crib for over 3 weeks now so I can get housework and laundry done which she was doing great at (napping 2-3 hours each time) but in the past week she has started only sleeping for about 30 minutes and waking up ready to play. So she plays for 30-40 min and then gets fussy for another 20 min nap. I'm not sure how to fix this? I feel like letting her cry it out wont work because like I said she wakes up refreshed and ready to play but I also kind of feel like it's what I should do I just don't want to do the wrong thing here. Someone PLEASE HELP!!😩😩😂😂 So this mama can get her laundry done!!