My suggestion is that you give yourself more time— enough that you feel like you don’t need to rush and can get the score you want. Then, slowly work your way back to 35 mins. I have this same problem, and it’s really that I’m rushing. The more comfortable you can get with the test, the less time will force you to move too quickly because you’ll be better at anticipating what info is relevant. Try not to use the time to check the passage more, just try to read slower and understand every sentence.

I’m also taking the September exam, and I’m currently giving myself 125% time on RC sections, and I’ll try to tick that down by about 5% each week over the next month or so.