IVONA (software)... Please slow down!

Wouldn't it be a real nice feature if the folks who develop this type of software were able to install a speed control bar? Wishful thinking I guess?
I have found the IVONA synthesizer to be a very big help in pronunciation. Yet I still do find it frustrating in the fact that words are spoken way to fast if one is trying for a phonetic breakdown.
Someone had previously asked for a Eng. to PL translation of : Polskie dziewczyny sa najpiekniejsze
This sounds good in IVONA, but the dziewczyny sa najpiekniejsze portion is a real tongue twister for this beginner!
Am I alone in this type of frustration?

http://www.ivosoftware.com/

Hello Rick You are not alone feeling frustation I have just spent 2 hours trying to register on a Polish auction site using an internet translation service to try to work out what to put in the boxes only to fail dismally! If there is anyone out there who can make contact with the seller so that I can trade that would be great!

I hope you use diacritics while using IVONA. If not - you're trying to learn completely wrong pronunciation.