Persian text to speech?

whenever i highlight persian text it thinks it’s arabic, reads it in the arabic voice and pronounces words totally differently. i have the persian Dariush voice installed, and it doesn’t give me the option to remove the arabic voice.

it also doesn’t let me select which language to speak it in- sometimes if there are characters used in both japanese and chinese it’ll be Speak… then buttons for both languages, but it doesn’t do that here either.

any help? i literally never need arabic language, any text i highlight in that is persian and i want it read as such :(