Just curious, I get 3200 rated correct, and 2700 wrong, btw I used to be 3408 rated, but 3200 is still very hard.
It maybe because you think very hard for the high rated puzzles and you don't think very much for the low rated ones.
Brother, if you are 3000+ Puzzle Rating, you know exactly what motifs you struggle with and which ones you are strong with, that's the reason....
lichess.org/training/dashboard/30/dashboard