I am a high pinger (180-230) and I usually play with a bolt action rifle as first weapon.
In order to manage to play decently, I have to be really concentrated on the game and constantly try to estimate when to shoot, so I can hit a target (trying to calculate the lag etc). As the time passes and you learn the maps, thing are a bit easier but still it can be quite exhausting to play the game. Sometimes you can see me on top of the score. Many times at the end of the score board, usually when I am too tired to be constantly concentrated on the game. I think the extra effort demanded by the high pingers is what makes them having better scores. We have to fight hard for each shot.
or we just hack!