Hello! Thank you so much for your comment and for your feedback! :)
Do you mind if I ask you what OS were you running the game in and the specs of your computer (graphics and CPU)? It may be of help to understand the slowness.
The written dialogue slows down a lot when the rendering is slow, as generally it is much faster than the speed of speech.
Did you uncheck the VSync option in the Graphics Settings or didn't change anything? In some Windows computers VSync tends to slow the game a lot.
Once again, thank you SO SO much for testing the game out and taking the time to give some feedback :) I wish you a wonderful week! :)