Why can't i get any better ping with LLAPI?

I can't get better ping then 25 with unity NetworkTransport, can some one tell me what is wrong?

I connect to same pc using those settings:
GlobalConfig gc = new GlobalConfig();
gc.ReactorModel = ReactorModel.FixRateReactor;
gc.ThreadAwakeTimeout = 1;
ConnectionConfig cc = new ConnectionConfig();
mChannelReliable = cc.AddChannel(QosType.ReliableSequenced);
mChannelUnreliable = cc.AddChannel(QosType.UnreliableSequenced);
HostTopology ht...

Why can't i get any better ping with LLAPI?