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To reduce lag you can configure your system. Here's a way to reduce ping up to 80 from 100. Incidentally, this method is suitable for almost all games:

1. Run and minimize the game.

2. Open the Windows Task Manager (press Ctrl + Shift + Esc) with a list of running processes.

3. Find the name of processes running game and click on it with the right mouse button.

4. Choose a priority and put it "below average" (below normal).

5. Close the Task Manager and go back into the game.

You may ask what way, reducing the priority of the game, it should decrease lag?

The whole point is that the link is referred to the VPN-connection (pppoe or otherwise) with the Internet and at the same average priority of running the game loads the processor to 100%, without giving freedom to work the mix.

When playing on a given server, your ping depends on the speed and quality of communication. Ping - is the delay between sending packets from server to client and vice versa.

If the ping is high then you can not normally play. Players with lower ping will have an advantage before you for the simple reason that the server will react faster on they shot and if you shoot at each other at the same time the opponent will kill you, and you will not do it because by the time you shoot, he won’t be at this point. Remember that in a multiplayer game all decide split seconds. The average ping level when you can play is in the range of 5 to 70. In COD2, unlike COD1 developers have built in antilag, which in theory is designed to equalize the chances of players with different ping. But ... the system has proved to be not very wealthy, to serious levels of play as adds a wild number of randomization.