I'm impressed that you are at that SR level using a controller!!!
Overwatch aint that bad on pad really most characters like lucio,zen,torb etc you just get the crosshair head height and spam shoot and let them walk into it.
I can't play any of the ones that require fast accurate aiming like widow,soldier,mcree,reaper,hanzo,dva,orisa,phara. I don't ever even try to play these.
The easy ones are monkey,sym,mercy,rein,junk.
The new pad options are much better than they used to be on the game, now you set it to aim smoothing 0 then aim ease in around 50 and then sensitivity where you feel comfortable mine is at 25/25.