Solved Problem with command

/fps command can only be used while you are in a game and it's similar to the MH fps and latency display. For example sting maphack will display these values on top of health and mana bars.
Keep in mind this is not a fully accurate way of testing your latency though as it varies a lot; a direct ping via CMD or MTR would be the most recommended.

/p command has been disabled since it provides useless information and is inaccurate for our realm. The /ping command only displays the latency of the lobby and not the game servers that are hosted in multiple different countries, besides it only updates every few minutes so it doesn't even provide live values.