如何在网络共享中使用C#实现高性能的filecopy方法？

using System;
using System.IO;
using System.Net;

class Program
{
    static void Main()
    {
        string sourceFilePath = "sourceFile.txt";
        string targetFilePath = "targetFile.txt";
        string targetUrl = "http://example.com/targetFile.txt";

        // 读取源文件数据
        byte[] buffer = File.ReadAllBytes(sourceFilePath);

        // 创建Web请求
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(targetUrl);
        request.Method = "PUT";

        // 写入目标文件数据
        using (Stream requestStream = request.GetRequestStream())
        {
            requestStream.Write(buffer, 0, buffer.Length);
        }

        // 发送Web请求并获取响应
        using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
        {
            // 检查响应状态码等信息
            if (response.StatusCode == HttpStatusCode.OK)
            {
                Console.WriteLine("File copy successful.");
            }
            else
            {
                Console.WriteLine("File copy failed.");
            }
        }

        Console.ReadLine();
    }
}