Toddler napping

So I put my son down for a nap around 12:30 he takes forever to fall asleep. He fell asleep about 15 mins ago. I'm thinking about changing his nap time. I know he's tired because he always ends up falling asleep. I hate having him in his room for that long šŸ˜« what would you do and what's your 2.5 year old nap schedule look like?