I’m a math student and I have a habit of making do with tiny bits of information. When faced with 25 lines reading comprehensions, my brain gets overwhelmed with the influx of information and I get tired very quickly. Due to this, I end up having to read the RC 3-4 times and end up wasting precious minutes.
Make a habit of reading till you’re doing your GRE preparation . Start with articles that interest you from established sources like the Economist ,NYTimes, New Yorker , The Atlantic etc. . Read one article a day or you can pick a book and read few pages per day (Non-fiction is preferred as the writing/wording matches with the passages you tend to encounter in GRE ).