word usage - Which expression is more idiomatic? `easier to read`, `has more readability` or some expression else?

I asked a question in this post.

Is “to have xx systems achieve xx-level” easier to read than “to achieve xx-level of xx systems”?

When I got an answer for that question, I felt readability may be more idiomatic, but I am not a native English speaker, so I need a double check.

Thanks in advance.