Regarding blurry fonts. I've noticed the same as you and @trompetin17 is already working on this for the next release. Here are some issues and PR related to this: Issue: #8759 PR: #8793 Using the GUI at 100% shouldn’t result in blurry fonts. One idea that comes to mind is that, in the meantime, you could use a lower resolution when playing so you’re not forced to increase the GUI scale. That way, you wouldn’t have the blurry font issue.

See that house on the middle left of the CC? What if I had a couple of builders right where that house portrait covers the house? How annoying it would be if I had to bring the camera down, just to see those builders? 

Hasn't this blur been fixed in R28? It's one of the new features of the latest release. 

Small update: I just figured out that my eyes are already tired when sitting in lobby for 2 mins. Idk if it's font size or something else... edit: I can't increase UI to 125%, then it's supper blurry and/or weird. 

A quick tips guide should just focus on basics like constant resource gathering and not leaving units idle. New players struggle more with economy than anything else.