She may really likes it! When a child really enjoys what she /he is doing they pick it up very fast!!
I've noticed that as well.I try to make all of our learning fun and the girls always excel. I have found, however, that with the eldest she picks it up REALLY quickly if it's something she's interested in. For example,she learned every species of North American owl in moments, it seemed, just because she loves owls so much.
I'm really looking forward to proceeding with Little Reader and seeing how it works out. I wish I'd started earlier with my two year old!