Then there are only two answers, practice, or think some thoughts (not necessarily even when you are shooting*) to effect your perception without "aiming"... like imaging you shooting
in the water and it's slowing your arrow, just a silly though like that may just soak into you brain and give it that slight nudge it needs.
The power of thought is amazing.
I while ago I had some extensive sinus surgery and the consultant was talking me though it and saying that the natural resultant swelling isn't actually a helpful response from the body.
As I was waiting to go down, I concentrated on a mental image of men in white coats inside my head hosing down the inside with cool fresh water to calm any swelling, and saying to myself there won't be any swelling... there won't be any swelling.
After the op' the consultant came round, told me the inside of my head had been like an old fashioned glue pot, then he said.... "There's very little swelling!"
Del
* Maybe imagine it before you go to sleep at night.