That's the issue you have, you focus too much on trainers, in order to "translate" your aim, you need time in that specific game to do so. I know you said you do so already, but you may not have enough of a difference in time to adjust.
#Smooth aim in kovaaks but way less smooth in actual game
quasi stratus
But there are other factors, like for example, whether or not you are nervous, tired, hungry, thirsty, and more.
But your gamesense, and positioning can and will affect it as well.
normal sundial
that ^ + maybe the game's characters' movement speed and patterns are different from the way u train? i think if u play the game more and focus on the enemy's movement + ur movement as well u will improve a lot, can use a specific game routine too