Lag is the delay or slowness in the game on the network.
Ping, check the status of the connection with one or more remote computers.

But in more serious cases or users who have little knowledge of software, may use the following program:

http://www.freenew.net/windows/game-booster-3-1/544431.htm

Down and installed as appropriate:
1) when you say you asked to install IObit DECLINE
2) Then turn off all other options that offer you disable them all and give SKIP
3) Then END.

Will be installed and then you just have to click the game and puts you in the PC game mode turning off services you do not need and take up bandwidth or decrease performance.
IT'S FREE

NOTE:
If at any time the server will ping out of the game above 500, then just wait a bit and re-enters.