Server FPS Lag
 

Hey so i run a HvH server, and i seem to have problems with (lag) i have seen it on some other servers, but they have fixed it now, and i wonder is there any plugin that fixes the lag when you start to see players? like rly low fps (1-10 fps)
this does not happen on other servers.

Does anyone have an idea why?

Any help is appriciated.