You may not understand the problem, I know that you are working on a multiplayer game, but it is very, very hard to create a smooth (!!) and playable multiplayer game (like a shooter for example) that runs fine over the internet. Have a look at Valve's Counter-Strike (Source). They are very talented people and they invested a lot of time in that issue. Just google it. Old positions of all objects are saved and when you shoot, the server calculates your shot depending on the time it takes for the information to get to the server. Btw a ping >= 100ms is almost inacceptable when you play a 5on5 war or likewise.

I hope you can prove me wrong with a working example, though!