content-wise; concerning the content
Typically used adverbially as 内容的に(は) to comment on the nature or substance of something, rather than its form or procedure.
内容的には面白いが、文章が読みにくい。
Content-wise it's interesting, but the writing is hard to read.
この二つの書類は内容的にほとんど同じだ。
These two documents are almost the same in terms of content.