... if the PlugIn sends Annoucements to the Server. After sending or u disable the Plugin, the Server runs normal.

Uhhhh... What? Sorry, I don't understand what the issue is that you're having! ? Can you elaborate please?

ok, if i use ure plugin and a Annoucements is coming, the server lags on Annoucementsbegin or stuttering short time (i go ane step back). sorry my english, iam from germany :)

Can't say I've ever noticed that myself! Is it all announcements?