Sweep for significant words.
Rather than perusing each sentence, let your eyes take hold of the significant words. After the time you will find that you can take in the greater significance of the passage with simply these couple of words. You can generally rapidly rescan in the event that you need to hold more information.
Be a functioning reader.
Try not to trust that the story will come to you. Envision what will occur and what you have to hold, and search for those, regardless of whether they are certainties, the plot focuses, or significant themes.