I don't want to skip whole dialogue boxes at lightning speed. I want to auto advance. So as in the box appears at a normal speed and pauses for a few moments and then continues to the next dialogue box slowly one at a time. That way you can just read and have it progress rather than having to press spacebar at the end of every box as you've read it. Lots of visual novels do that so that you don't have to click as much. I'm guessing that's just not a feature here.