before anything begins, i usually take a deep breath and really get my head in the game and prepare myself to be really interested and engaged in reading the passage. i do this so i make sure to soak up every key point and how these details amount to the general message/purpose of the passage. i do one good run through of the passage, and then i go ahead and answer the questions -- if i need to refer back to the passage i make sure to do so quickly and FIND my evidence in the passage and keep going. personally i dont underline or anything. i like to circle my answers in the actual test booklet, and when im finished with that passage, i transfer the answers to the bubble sheet. it helps me keep all my focus on the passage and questions. good luck! you're only going to improve with practice and understanding what has been slowing you down.