Yeap everyone on the server including me experienced that lag/delay during gameplay.

Good idea, I will run the game in window mode together with pingplotter and check what's going on when that lag happens.

I've tested 3 times, morning, afternoon and night and 202.71.103.132 always gets the best results of all.

Currently me and webhost suspect that there's a problem with the datacenter's routing. Is there any way to check that?