Why does Claude sound so pretentious?

I'm a bit annoyed with Claude recently. Specifically, the way it talks is insanely convoluted. I am a domain expert in my space, and when working on coding assignments, it often produces this word salad of technically correct words that are basically impossible to understand without careful attention. I want to understand quickly what it's saying, especially in planning phases. I've written a ton in CLAUDE md, in the memory, instructing it to talk a certain way, but Claude just doesn't listen. The worst part is that a lot of the time it’s wrong, but it takes me twice as long to figure that out, because I spend so much time parsing what garbage is coming out of it's mouth. I want explanations using words that a 5th grader can understand, the task is already hard enough, and I'd rather only focus on one thing at a time. Any ideas on how to fix?