If I use it as a normal Class, it brings lagg to my server. I get the status of 5 server with one command. But it needs some seconds to load
I think it's not a good idea for you to try this yet. You obviously do not know how the asnyc task api works and also obviously not what threads really are. You might want to carefully read through SSS and you need to understand almost every single line in there. If you don't understand what some particular line does, ask. You can also simply install SSS and use https://github.com/robske110/SignSe...84/SSS/src/robske_110/SSS/rootPlugin.php#L104 for getting online servers. However, currently no good api functions for adding servers are provided, so you'd need to have a sign with the server info somewhere in your world. I might change that.