The Ping time (in ms) is the time the signal travels from your computer ->server -> back to your computer. It really hasn't much to do with com specs but mostly with your Distance from the Server.
It doesn't have much to do with ingame settings, as they reduce mostly the resource usage on the computer, but not the pings. And don't ever confuse low-fps-lagg (meaning the you see that the "pictures" shift slowly), which depends on your computer, with high-ping-lagg, which makes your skills arrive late etc.
I heard the Server is in Africa. I, living in Germany, don't have high pings (around 100ms or so). But if you live in Asia or America for example it might be worse.