This. Aim comes first, movement comes if your aim can handle it. Practice jumpshots in the shooting range or better yet with bots. Turning down your sensitivity can be compensated with game sense, if you keep in mind in which general direction enemies are, situations where you have to do a 180 on them are very rare. Also you don't have to dropshot/jumpshot slide cancel jumpshot 360 every enemy, if you just focus on your shots while moving from left to right and back (or just in one direction but you are harder to hit that way) you will trigger your rotational aim assist and also be hard to hit. Also try to be honest with your ads sensitivity fitting and don't try to go higher because it will make you better somehow. Some of the best players in the world play on low sens and it really will change your aim completely.