Heavy lagg every couple minutes, only on this server.

Hi Im playing from Germany, I play with 4G, getting about 50MS usually on this server, or in other games like LoL or Counter Strike.
However, this Wotlk Server here gives me hardcore lag every couple minutes that lasts for at least 10-15 seconds, my MS go up to 500, or even 3000MS.

I have no idea why, anybody have any suggestions? I googled and found this here but didnt help at all.
https://www.reddit.com/r/warmane/com...heres_the_fix/


Even on lowest settings, I still get that disgusting Lag every couple minutes.

The game is unplayable for me this way.