Hi, I'm the main translator for this. I'd be interested to hear what you dislike about our font choices and what fonts you'd recommend us to use in order to make it more readable, or maybe some examples of good font choices for us to compare against if you can't be bothered to look up some fonts.
Furthermore, I'm unclear on what you were talking about with pages 43-44, as I can't see anything of note with our translation there, so if you could clarify that would make your feedback more actionable for us.
Sorry for the late response. Too late actually.
The problems are not the font choice actually. It's more like the spacing and typesetting issues similar to that. First of all, a little nitpicky but the text doesn't look properly centred in the bubbles. Sometimes the fonts aren't properly shaped. You can use hyphens if the text doesn't fit, but don't make it too cramped. Some of the bubbles looks very cramped. Decrease the character spacing and line spacing, and it might look better. For MC's dialogues, you're using a very weird font. You can just use CC Victory Speech for general text/dialogue, or CC Tim Sales. Both look good. Same thing for shouts or yelling, use the bold version of Victory Speech or Yikes!. For thinner lines, maybe Manga Speak. The thin font that you're using on page-33 doesn't look good at all. On page-41, why did you put the dialogue below the punctuation? It doesn't look right. Try not to separate the punctuation. And no need to type "fuuuuuuuuuck" add a stroke in between and I'm pretty sure that will convey the message well.
Now onto the main issue—the lettering. There is too much spacing between characters. Also among lines as well. Choose a readable font size and stick with it, you don't need to increase the font size, or the character/line spacing to overcrowd the bubbles. The goal is to not crowd the bubbles at all and make it look cleaner.
Also, NEVER add vertical text, please. Nobody likes them, at least not in English. Not only that but your vertical text appears to be blurry for some reason.
That's about it. And no, I'm not reading on a mobile device, like that other guy was saying. I read on a high-resolution monitor. And ignore that part about pages 43-44. It was a problem on my end. I fixed it myself.