java 端口扫描 速度很慢 求大神帮忙

package point_open;

import
import
import

public class IPpoint {

    Socket socket = null;
    public IPpoint(int NO) {   
        try {
            socket = new Socket("10.0.128.200",NO);
            socket.setSoTimeout(10);
            if (socket.isConnected()){
                System.out.print("开放端口>>>>>>>>>:"+NO);
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            System.out.println("端口未开放！"+NO);
        } finally{
            if(socket!=null)
                try {
                    socket.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    
                }
        }
    }
   
    public static void main(String [] args) throws UnknownHostException, IOException{
        
    for(int StartIP=53;StartIP<=80;StartIP++){
            new IPpoint(StartIP);
        }
        //new IPpoint(80);
    }
}