U should be happy that they're trying they're best so we can have good experience from this game also it's not slow time passes fast nowadays (my English is bad)
It's rough man, this is a very ambitous VN game and with a small team. all you can really do is hope this game gets more fame and funding for more staff to speed up the process.
Yeah. As somebody who is trying to make a fairly ambitious game by myself, I understand just how much time it can take to make not just the story, but also to develop characters. Honestly, I'm extremely impressed with the speed at which they are able to update.