为什么在硬盘上创建截图捕获的文件并使它们变得非常慢？

Question

我的意思是我有这个代码我在硬盘上使用计时器创建许多gif文件来捕获桌面窗口。我每1秒拍一次截图。 例如，60秒后，我在硬盘上只有60个gif文件。

然后我使用我自己的动画gif类来创建GIF动画。 当我正在播放GIF动画时，似乎缺少许多帧。

现在我每秒都会截取dekstop窗口的屏幕截图。 但我想我应该采取每秒钟25个截图或60？ 我该怎么做 ？

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Drawing.Imaging;
using System.IO;
using unfreez_wrapper;

namespace CapturedDesktop
{
    public partial class Form1 : Form
    {
        int screens;
        string gifsdirectory;
        UnFreezWrapper unfreez;

        public Form1()
        {
            InitializeComponent();

            unfreez = new UnFreezWrapper();
            screens = 0;
            gifsdirectory = @"C:\Temp\CapturedDesktop\";
        }


        private void CaptureScreenshot()
        {
            screens++;
            screenshots(gifsdirectory + screens.ToString("D6") + ".gif");
        }

        public static void screenshots(string filename)
        {
            //Create a new bitmap.
            using (var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width - 100,
                                           Screen.PrimaryScreen.Bounds.Height - 100,
                                           PixelFormat.Format32bppArgb))
            {
                // Create a graphics object from the bitmap.
                using (var gfxScreenshot = Graphics.FromImage(bmpScreenshot))
                {

                    // Take the screenshot from the upper left corner to the right bottom corner.
                    gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X,
                                            Screen.PrimaryScreen.Bounds.Y,
                                            0,
                                            0,
                                            Screen.PrimaryScreen.Bounds.Size,
                                            CopyPixelOperation.SourceCopy);
                }
                // Save the screenshot to the specified path that the user has chosen.
                bmpScreenshot.Save(filename, ImageFormat.Gif);
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            CaptureScreenshot();
        }

        private void AnimatedGifButton_Click(object sender, EventArgs e)
        {
            List<string> myGifList = new List<string>();
            FileInfo[] fi;
            DirectoryInfo dir1 = new DirectoryInfo(gifsdirectory);
            fi = dir1.GetFiles("*.gif");
            for (int i = 0; i < fi.Length; i++)
            {
                myGifList.Add(fi[i].FullName);
            }
            unfreez.MakeGIF(myGifList, gifsdirectory + "agif", 100, true);
        }
    }
}

当我创建它时，问题不是动画gif速度，但它不是很平滑，就像丢帧一样。