Well, i have a good internet, I have a good ping in all the games i played even other mmo.
But i have lag, I see the other people like doing "jumps" while they are running. I see how they are running then they stop for 1 sec or less and then they are in another side.
This happens with monsters too and sometimes I have a lag hits and the game freeze for 1 or 2 secs and is hard to play sometimes.

I've checked my internet and its fine. I don't understand what is happening.

Help please.

Sorry if my english isn't good