Update README.md

Author: ReferenceType

README.md

@@ -122,6 +122,12 @@ output:
 Hello I'm a client!
 Hello I'm the server
 ```
+Note: Important performance setting here is whether to use a buffer or a queue as buffering policy. Use Buffer if messages are mainly regions of byte[] such as (buffer, offset,count).
+Use Queue if the messages are full byte[] (0 to end).
+```c#
+       client.GatherConfig = ScatterGatherConfig.UseQueue;
+       server.GatherConfig = ScatterGatherConfig.UseBuffer;
+```
 </br>For SSL variants difference is:
 ```c#
    var ccert = new X509Certificate2("client.pfx", "greenpass");