Custom line chart

Question

Good morning, I am developing a program in c# that should draw a line chart(x,y) in a picturebox(pcbANALISE) according to the data I have in a list (aquisicaodata[ ]). This chart also has a scroll bar for navigation by graph. To draw I am using the following code.

    int camera;
    List<float> aquisicaodata = new List<float>();
    Graphics g;

    public void DrawANALISE()
    {
        g = pcbANALISE.CreateGraphics();
        g.SmoothingMode = SmoothingMode.AntiAlias;
        var lastPoint1 = new PointF(0F, (float)(2 * pcbANALISE.Height / 5) * 0.5F); //ultimo ponto
        PointF newPoint1 = new PointF(); //novo ponto

        for(int i = camera; i < pcbANALISE.Width/0.2f + camera; i++)
        {
            float porcent;
            if (i < 6000) porcent = aquisicaodata[i] / 5;
            else porcent = 0.5f;
            newPoint1.X = (i-camera+1) * 1f;
            newPoint1.Y = porcent * pcbANALISE.Height;
            using (var p = new Pen(Color.Lime, 0.1f)) g.DrawLine(p, lastPoint1, newPoint1);
            lastPoint1 = newPoint1;
        }
    }

Horizontal scroll bar event code:

    private void hScrollBar1_Scroll(object sender, ScrollEventArgs e)
    {
        camera = hScrollBar1.Value * 6000 / 100; // variavel usada para rolagem do grafico
        g.Clear(Color.FromArgb(65,65,65));
        DrawANALISE();
    }

My problem is this: When I roll the scroll, instead of the graph moving left or right, it’s redrawn from the beginning with each new scroll tick. Which is very slow, besides not being in the way intended. Can anyone help me with this problem?? Thank you very much for your attention.