I'm not sure how to say this but whenever I use the classic gun it feels like I'm shooting noodles at the enemy. it feels so loose and it feels like it's shooting around the enemy, this is the only gun I have a problem with, any tips?

Hey All, I recently moved and went from playing on 10 ping to 80. I can defo notice the delay in hit registration but when I watch some radiant streamers they constantly have players around 80 ping doing really well. My question is do you a...