I'm not anywhere near a 2.0 kd, but the players that I see on YouTube and in game that are better tend to stand out largely because of map knowledge and awareness. They already know where enemies can spawn and what places they like to be in a fight. Tinkering with your sensitivity setting can help a bit with aiming too of you really do think you've hit your peak there. Low sensitivity for easier accuracy, and higher sensitivity for quicker reactions

Im not a pvp god or anything, but i can give a few tips. There’s a few obvious things that can help you improve greatly, things like mechanical skill / game sense are both important skills that mainly improve with practice. Hell these are probably the most important skills to learn overall, but theirs no quick way of learning them. Doesn’t matter if you can hit all your shots if you keep running into 2v1s constantly lol. Another good tip is to teamshot, don’t necessarily hold hands with people 24/7, but be there to back up your teammates or hope that someone is there to back you up. Final thing is to try to learn the spawns. Spawns are overall ok in d2, you can’t quite spawn kill players, but you can spawn trap them pretty easily on many maps. This is especially obvious in rift, as long as you don’t push up too hard into the enemy spawn, they spawns won’t flip and the enemy’s will kinda just get teamshot over and over again and don’t stand a chance.

It's running with a team but mostly knowing which encounters you will win and those you need to retreat from.

Duhhhh. Everyone is cheating. Especially on console 🤷🏿‍♂️🤦🏿‍♂️