Option to improve performance for callouts or just server side is to use thread
Here Is an example of using thread:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace thread {
class Program {
static void Main(string[] args) {
System.Threading.ThreadPool.QueueUserWorkItem(f => {xxx();});
}
static void xxx(){
int a = 8;
}
}
}
Enjoy,
Rami Heleg