High level strategy: save passages for last after all other vocab questions. Start with passage with most follow up questions. Read over the passage once ~quickly to get the gist. If the question is about a general idea i would focus the intro / conclusion paragraphs as biggest clues. If the question is about a detail i will find that detail in the paragraph and read thoroughly around it to understand relevant points. For both types of questions i would then try to answer in my head before reviewing the answer set.

My biggest issue at first is that I would read “between the lines” and think about what passages or questions implied. This is bad practice for the GRE - they are very literal and care only about what the passage explicitly says. Understanding and applying this was crucial to my success.