Law is a layered subject. Once you have read enough of it you hit an inflection point where it becomes far less difficult. That is what law school is really all about. Most all lawyers can fly through a new case or law and pull out key elements within minutes. The language is actually not thay bad, but this comes from someone who enjoyed taxlaw classes.

Try reading physics, maths or phylosophy papers. There too you must read a few hundred before things start to line up.