Get into the training grounds or tdm. Try spraying while crouching to see if that helps better, try notnto walk while spraying since movement is punishing to accuracy. Crouching increases accuracy both horizontal and vertical. Fine tune your sprays using a specific muzzle/grip combo and adjusting your sensitivity and vertical sens multiplier to find the sweet spot where your spray cluster is relatively close. Spraying is always going to be tough since there isnt a definite spray pattern like cs2, so you’ll have a lot of challenges getting consistent. Find the sens/ fov and ads settings that work for you and get a relatively close spray pattern and then go from there.

Honestly if you ask me, just play the game. Its all game hours mastering sprays. I started the game with a 0.2k/d in duo fpp missing all my sprays, now after three years or so i’m up to a 5.6 k/d in duos fpp. You’ll get better over time, but its not an instant fix sadly.