C# snake game problem with body extension monogame

Question

So I have this problem where my sprites draw to close to the head of my snake and therefore only takes very long time to complete the map. I have tried to increase the speed and lower the frame rate but it is very laggy.

//Comments are in Swedish

{
    public class Game1 : Game
    {
        private GraphicsDeviceManager _graphics;
        private SpriteBatch _spriteBatch;

        SpriteFont xcord;
        SpriteFont ycord;

        //Map settings
        int mapX;
        int mapY;

        //Movement Variabels


        //Snake Movement
        bool snakemoveup;
        bool snakemovedown;
        bool snakemoveright;
        bool snakemoveleft;
        int speedx;
        int speedy;
        int score;
        int timer;
        int i;


        
        List<Rectangle> snakelength = new List<Rectangle>();
        List<int> positiony = new List<int>() { 300, 300 };

        

        bool snakemoveup2;
        bool snakemovedown2;
        bool snakemoveright2;
        bool snakemoveleft2;
        bool snakemoveupMemory;
        bool snakemovedownMemory;
        bool snakemoverightMemory;
        bool snakemoveleftMemory;


        //Sprite Variables
        //Textures
        Texture2D snakehead;
        Texture2D gamemap;
        Texture2D gamemapborder;
        Texture2D Leader_Right;
        Texture2D Leader_Left;
        Texture2D Leader_Up;
        Texture2D Leader_Down;
        Texture2D Follower;
        Texture2D Candy;
        

        //Sprite Rectangles
        Rectangle snakerec;
        Rectangle followerrec;
        Rectangle candyrec;
        

        //Position Variables

        

        public Game1()
        {
            _graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
            IsMouseVisible = true;
        }enter code here

        protected override void Initialize()
        {
            // TODO: Add your initialization logic here

            //MapSize

            mapX = 900 + 100;
            mapY = 800 + 100;

            _graphics.PreferredBackBufferWidth = mapX;
            _graphics.PreferredBackBufferHeight = mapY;
            _graphics.ApplyChanges();



            //Movement
            speedx = 0;
            speedy = 0;

            base.Initialize();
        }

        protected override void LoadContent()
        {
            //läger till en svans i listan
            snakelength.Add(new Rectangle(snakerec.X, snakerec.Y, 50, 50));

            //sänker fps:n (nämnaren = önskade fps:n)
            IsFixedTimeStep = true;
            TargetElapsedTime = System.TimeSpan.FromSeconds(1d / 60);

            xcord = Content.Load<SpriteFont>("File");
            ycord = Content.Load<SpriteFont>("File");
            _spriteBatch = new SpriteBatch(GraphicsDevice);


            Leader_Right = Content.Load<Texture2D>("Leader_Right");
            Leader_Left = Content.Load<Texture2D>("Leader_Left");
            Leader_Up = Content.Load<Texture2D>("Leader_Up");
            Leader_Down = Content.Load<Texture2D>("Leader_Down");


            Candy = Content.Load<Texture2D>("Candy");
            Follower = Content.Load<Texture2D>("Follower");
            gamemap = Content.Load<Texture2D>("Snake_map");
            gamemapborder = Content.Load<Texture2D>("Snakemapborder");


            snakerec = new Rectangle(500, 450, Leader_Right.Width, Leader_Right.Height);
            candyrec = new Rectangle(200,150, Candy.Width, Candy.Height);
            


            // TODO: use this.Content to load your game content here
        }

        protected override void Update(GameTime gameTime)

        {

            
            
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();

            
            //gameTime.ElapsedGameTime.Milliseconds

            //sätt en if innan ditt ökande 
       
            snakerec.X += speedx;
            snakerec.Y += speedy;
            if (Keyboard.GetState().IsKeyDown(Keys.W) && snakemovedown == false)
            {
                snakemoveup2 = true;
                snakemoveupMemory = true;
            }
            if (Keyboard.GetState().IsKeyDown(Keys.D) && snakemoveleft == false)
            {
                snakemoveright2 = true;
                snakemoverightMemory = true;
            }
            if (Keyboard.GetState().IsKeyDown(Keys.A) && snakemoveright == false)
            {
                snakemoveleft2 = true;
                snakemoveleftMemory = true;
            }
            if (Keyboard.GetState().IsKeyDown(Keys.S) && snakemoveup == false)
            {
                snakemovedown2 = true;
                snakemovedownMemory = true;
            }

            if (snakerec.X % 50 == 0 && snakemoveupMemory == true)
            {
                speedy = -5;
                speedx = 0;
                snakemoveup = true;
                snakemovedown = false;
                snakemoveright = false;
                snakemoveleft = false;

                snakemoveupMemory = false;
            }

            
            if (snakerec.Y % 50 == 0 && snakemoveleftMemory == true)
            {
                speedy = 0;
                speedx = -5;
                snakemoveleft = true;
                snakemovedown = false;
                snakemoveright = false;
                snakemoveup = false;

                snakemoveleftMemory = false;
            }

            
            if (snakerec.X % 50 == 0 && snakemovedownMemory == true )
            {
                speedy = 5;
                speedx = 0;
                snakemovedown = true;
                snakemoveup = false;
                snakemoveright = false;
                snakemoveleft = false;

                snakemovedownMemory = false;
            }

            
            if (snakerec.Y % 50 == 0 && snakemoverightMemory == true)
            {
                speedy = 0;
                speedx = 5;
                snakemoveright = true;
                snakemovedown = false;
                snakemoveup = false;
                snakemoveleft = false;

                snakemoverightMemory = false;
            }
            
            
            
            if (Keyboard.GetState().IsKeyUp(Keys.W))
            {
                snakemoveup2 = false;
            }
            if (Keyboard.GetState().IsKeyUp(Keys.S))
            {
                snakemovedown2 = false;
            }
            if (Keyboard.GetState().IsKeyUp(Keys.A))
            {
                snakemoveleft2 = false;
            }
            if (Keyboard.GetState().IsKeyUp(Keys.D))
            {
                snakemoveright2 = false;
            }

            //Godis

            Random randomx = new Random();
            Random randomy = new Random();
            List<int> godtalx = new List<int>() { 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900 };
            List<int> godtaly = new List<int>() { 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800 };

            if (snakerec.Intersects(candyrec))
            {
                candyrec.X = godtalx[randomx.Next(1, 18)];
                candyrec.Y = godtaly[randomx.Next(1, 16)];

                score++;
                

                snakelength.Add(new Rectangle(snakerec.X, snakerec.Y, 50, 50));

            }
            //Follower

            if (snakelength.Count != score)
            {
                for (int i = snakelength.Count - 1; i > 0; i--)
                {
                    snakelength[i] = new Rectangle(snakelength[i - 1].X, snakelength[i - 1].Y, 50, 50);
                }
            }
            snakelength[0] = new Rectangle(snakerec.X, snakerec.Y, 50, 50);


            //Infite borders

            //X
            if (snakerec.X <= 50 || snakerec.X >= 900)
            {
                if (snakerec.X <= 0)
                {
                    snakerec.X = 995;
                }
                if (snakerec.X >= 1000)
                {
                    snakerec.X = 5;
                }
            }
            //Y
            if (snakerec.Y <= 50 || snakerec.Y >= 800)
            {
                if (snakerec.Y <= 0)
                {
                    snakerec.Y = 895;
                }
                if (snakerec.Y >= 900)
                {
                    snakerec.Y = 5;
                }
            }



            // TODO: Add your update logic here

            base.Update(gameTime);
        }

        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);

            // TODO: Add your drawing code here

            base.Draw(gameTime);
            _spriteBatch.Begin();

            _spriteBatch.Draw(gamemap, new Vector2(0, 0), Color.White);


            for (int i = 0; i < snakelength.Count; i++)
            {
               
                _spriteBatch.Draw(Follower, new Rectangle(snakelength[i].X, snakelength[i].Y, 50, 50), Color.White);
            }

            //Vilket håll huvudet kollar mot

            if (true)
            {

                if (snakemoveup == true)
                {
                    _spriteBatch.Draw(Leader_Up, snakerec, Color.White);
                }

                if (snakemoveright == true)
                {
                    _spriteBatch.Draw(Leader_Right, snakerec, Color.White);
                }

                if (snakemoveleft == true)
                {
                    _spriteBatch.Draw(Leader_Left, snakerec, Color.White);
                }

                if (snakemovedown == true)
                {
                    _spriteBatch.Draw(Leader_Down, snakerec, Color.White);
                }
            }

            

            _spriteBatch.Draw(Candy, candyrec, Color.White);
            _spriteBatch.Draw(gamemapborder, new Vector2(0, 0), Color.White);
            _spriteBatch.DrawString(xcord, (snakelength.Count).ToString(), new Vector2(0, 60), Color.Black);
            _spriteBatch.DrawString(xcord, (snakerec.X).ToString(), new Vector2(0, 0), Color.Black);
            _spriteBatch.DrawString(ycord, (snakerec.Y).ToString(), new Vector2(0, 30), Color.Black);

            _spriteBatch.End();
        }
    }
}