Very cool game but online games have very high pings, almost unplayable. please fix

I realy like the concept of this game! It is very funny to fight against the incoming waves of people and to survive. I know I have only 3.5 hrs played until now but I had this time spent with friends in a nice made game..

Unfortunately i noticed some mistakes in programming. The biggest issue is probably the server management. When ingame it happens very often my friends disconnect and the whole progress is ruined (please fix as quick as possible). It would be nice to keep working on a well working first person mode and fix issues that (for example) sometimes the attackers run over obstackles or walls.

Dear devs, I hope u understand my critic about the game and keep working on it. sorry for my not that good english. Have a nice day!

guess its ok