The text to speech function at the top of the article is the actual product but they are not going the extra mile and record it again for the other speed multip

The text to speech function at the top of the article is the actual product but they are not going the extra mile and record it again for the other speed multiplier like x.7 or x2.0. You can clearly hear the mp3 struggling, especially at 0.7 speed. It would have been interesting how they perform in comparison. The fact you are able to adjust the voices is even one of their selling points. I really wonder why they haven't done that