The difficulty of VR is seldom simply having a "grasp" of the passage, but being able to answer specific, sometimes ambiguous, questions about it with a very carefully crafted selection of also often ambiguous answer choices. That's not the way most people read anything, whether Dante or the NYTimes.
No. take practice passages and analyze trends in the types of passages, questions, and answers. There are some types of questions and passages you will do really well on. Figure out what you're doing right there. For those you don't do well on, analyze your thought processes while reading the passage and how you approach the questions/answers. Try to adjust these by changing approaches until you find one that gets you the right answers.