If it works don't change it, I played on 3 for the longest time switched to Xbox and had to go down to 1 on both platforms now, I honestly saw a improvement when I made it slower, so if ur decent and happy with your game Olay stay there man, yes lots of pvp gods so to speak play at 10, but I can drop a 40 bomb by my self at 1 sensitivity using the same guns, it all matters on how u handle ur self sensitivity is more of a preference doesn't change much in game in a benefit or negative way