What should I keep in mind while untime practice?

I’m almost at the end of my 2-month prep plan. Since, now I’m moving primarily to practice, I want to understand what all things should I keep in mind while doing untimed practice.

Primary purpose of asking this question is that overtime I’d have to move to timed practice (avg 1.2 min/question). Since the materials to keep in mind is vast, it’s feeling overwhelming. I’d use the answer as a base to build my own strategy but I’m looking for a good starting point.

My current state - I’m able to get (4,5,6)/7 in verbal and (6,7)/7 in quant but untimed.

State I’d want to go - Improve verbal to (6,7)/7 and timed.

My downsides -

  1. Quant - making small mistakes like leaving out some details, making calculation mistake because of hurry.
  2. Verbal - Bad with grammar and comprehending question in hard problems (takes time).

the entire purpose of untimed practice is to be extremely accurate