Timing issues - need advice

There is no hard and fast rule about cracking the RCs. With an accuracy of 80% in OG, I can assure you that you have some work to do. I don't know when you are going to take the GMAT but if you have up to 30 days then good news for you.

Here are my suggestions:

1. You need to work on your reading comprehension
2. You need to work on your reading comprehension
3. Study 1 & 2 again.

Let's drive the point home. You don't need any formula or a technical way of taking a crack at the RC section. From the way you constructed your sentences, I was able to deduce that you don't really have a problem with the English Language so my ideas will definitely work for you. I am sure you must have heard the suggestions or read them somewhere before but probably felt they won't add any value. I will restate them here again. Get a copy of the Economist and/or the Harvard Business Review. On the Internet, become an active reader of the New York Times. Read one long article from each source per day and use the remaining part of the your time work on the other 4 sections of the GMAT exam. Make sure you focus on getting the main idea and the salient points of each article. Don't focus on words like "however", "but", etc. Read articles on those topics that you know nothing about and those topics that you don't like. The articles on the Harvard Business Review are particularly boring and run several pages. Concentrate on getting the message of the topic as a whole and force yourself to finish each article once you start reading. This will help you train your stamina and learn how to concentrate on understanding dense topics and ideas that the GMAT often throws up.

After doing this for two weeks, do two or three RC passages and let us know your findings.