Best way to master timing and accuracy

While we are preparing for the GMAT, I could have attained some level of accuracy, but finishing the verbal/quant section in the time allocated was another big challenge.
Mastering the questions does not goes accordingly with mastering the timing, and I think that GMAT Club tests, are among the most helpful tools to practice semi-tests of verbal and quant and measure the progress more closely.
That was so helpful to me, moving from V34/35 with 30min above the 65 MIN allocated, to V37/38 in just the allocated time.
The verbal gmatclub tests are so close to the level of real gmat questions, as compared with OG questions. On the other hand, the Quant part, when compared with that of the OG, presents a much more difficulty.
It could be seen as a good way to prepare because you are faced with a harder level than what you're going to see at the Official Test, but the sequencing of questions could harm your prep