Text to speech - macOS Mojave - Kindle application .

There is two option to listen a ebook in Kindle application :

1.you can use text to speech by highlight a text and then press the keys of your keybord to hear the highlighted text .... or

2.Second option is to listen whole text instantly by using :in Kindle application : in top bar : Tools/Start Text To Speech.

- this option I just discovered today and is great as it let me to listen whole book ,the pages are changing automaticly and I can pause the text with space bar-which I was missing so much before .

However just after I discover this funcion I have changed something with the speed and now it is reading too fast . For some reason the speed rate which can be changed here : System Preferences/Accesibility/Speech :

does not work for this option but works for version 1 when the text is highlighted .

I do not have and idea where I have change this speed .I think when I was checking voice over funcion maybe I have done something over there.However this funcion is off now .

Maybe someone knows how to change this speech speed ?