I am an adult trying out Fonetti and it is not responding to my voice as I would have expected?

I am an adult trying out Fonetti and it is not responding to my voice as I would have expected?

Our engine is designed for children’s ‘read speech’ which is a completely different speech pattern to that of adult and conversational speech. As a consequence of this, an adult reading on Fonetti would not share the same level of reading accuracy or experience as a child’s.