Stuck at 620 in Mock Tests - Need help with Verbal timing

Hello Experts,

I need help from you. I have given GMAT mock tests recently and scored 610 (Q47 V27) , 620 (Q47 V28) . I am happy with my Quant scores but i am really worried about my Verbal scores. I have my real test on Jan 30, 2016, and I want to score above 700. Coming to my Verbal scores, I think with my 3 months preparation i am pretty much well equipped to solve any verbal question but the problem is with the timing. I am taking on average 3 mins ( i am non Native) for solving each question. If i try to quickly solve below 2 minutes, then i am mostly selecting incorrect choices. How to improve my timing in verbal section?

To give you guys an example, in my second mock test i took 35 mins for the first 11 questions (2 RC passages, 1 SC and 3 CR) and got all the 11 questions correct( the second RC passage was really tough and took lot of time), and then i looked at the time and started panicking. I got the next 7 questions wrong and overall i got 19 questions wrong and i didn't even attempt the remaining 2 RC passages. i had guessed almost 10 questions towards the end, which affected my score.

I have already completed the egmat online course and i feel very confident with all the basics but not sure how to answer verbal questions quickly and at the same time with high accuracy.
Sorry for the long post. Any helpful tips are really appreciated. Thanks in advance.