server very slow after 5min

[mzelecom]

hi i used BeetleX in my game server vb.net.but after sometimes server become very slow.when 50 client connected.
this is my code.whats wrong?

`Imports BeetleX
Imports BeetleX.EventArgs
Imports System

Friend Class servers
Inherits ServerHandlerBase
Public server As IServer

Sub server_run()
    server = SocketFactory.CreateTcpServer(Of servers)()
    server.Options.DefaultListen.Port = 8283
    server.Options.SessionTimeOut = 300
    server.Open()
End Sub

Public Overrides Sub Connected(ByVal server As IServer, ByVal e As ConnectedEventArgs)
   
    main_form.Connected(server, e)
End Sub

Public Overrides Sub Disconnect(ByVal server As IServer, ByVal e As SessionEventArgs)
    main_form.Disconnect(server, e)
End Sub

Public Overrides Sub SessionReceive(ByVal server As IServer, ByVal e As SessionReceiveEventArgs)
    Dim pipeStream = e.Stream.ToPipeStream()
    Dim name As String = Nothing
    If pipeStream.TryReadLine(name) Then         
        main_form.SessionReceive(server, e, name)
    End If
End Sub

End Class`

[beetlex-io]

Winform is not thread-safe, Serverhandler accessing winform functionality may produce unintended results