I’d also be curious about what the differences are. If your interest is high now, I don’t see why more dates would be out of the question. If you’re comfortable and get along great in person, and you enjoy her communication style during the in between then it sounds like a promising start.
I gave up on finding someone that’s exactly my mirror image or having all the same things in common ages ago. It’s more about the compatibility and comfort to where I don’t have to second guess anything.
I too, wonder if you’re looking for reason to not get serious with this one. Only based off of what you posted and not having been in one before. Maybe she just doesn’t check all the boxes that you’re looking for exactly, which is fine, but could also be a long search to find someone perfect. Up to you, if your interest isn’t sky high after date three I’d wonder why and if there are dealbreakers that would make you think you’d eventually lose interest.