Not sure if there really is a way to avoid planes wich are on a different place.
As you know, when you hit an enemy plane on your end, he gets hit on his end nomther if he's 200 yards more to the left (would be in a turn). This is the best solution, specially if you compare to games such as half-life, Delta Force, in those games you see the enemy where he was, and when you hit him on your screen he doens't get hit, this forces you to aim ahead of him and hit infront of him in the ground where he isn't on your screen.
Lag mostly depends on Ping time while warps seem to depend on Packet loss. Dependind on what connection you and your friend/enemy has got, you'll see eachother accurate close or too far off, nothing to do about it I think
