Knowing that I will maybe give it another shot. At what point in the story should I stop feeling like I'm reading a book written in ancient greek?
It probably depends on the reader, but for me maybe half way through it started feeling like it made sense?
I think its due to a combination of factors. Part of it is just the author's inexperience for his first book (according to the old thread he has said he would like to rewrite it), part of it is that his style is naturally a quite leisurely pace and with a tendancy to give a lot of information, and part of it I think is intentional that you dont know everything that is going on straight away.
You have to work a bit to follow whats going on, but once it starts to come together theres also a feeling of reward that you can now get it. Learning a language (like Greek) is probably a pretty good analogy actually
The whole series kind of feels like that a bit... slow going, but rewarding because it makes you work for it.