Some sentences are so long that as your reading, you get lost midway and your eyes have to jump back to the beginning of the sentence, wherever it was. Better to rewrite a long sentence into smaller bites of course.
But why did you get lost? It may be because the verb was too far away from the subject. Put them closer together and you could save the sentence. (There’s nothing wrong with an occasional long sentence.) This article on Ragan.com, a communications publisher, explains the trick.