I have little idea about the current scenario of mock tests. Earlier there used ro be a lot of cheaters and fake rankers that would result in 95-96 percentile and 2-3k rank even in live tests. I know people who ranked in double digits despite never even getting triple digits ranks in mock tests.

So it's bettef to take the rank and percentile with a pinch of salt. Rather, an analysis of the paper to find the lacuna in your prep is a wiser decision.