Sketch is running at low framerate (3fps) i don't know why

Hello,

Load the image in setup():


PImage img;

void setup() 
  {
  size(800, 800); 
  img = loadImage("picture.jpg");  
  img.resize(width,height);
  }


void draw() 
  {
  //background(img);
  image(img, 0, 0, width, height);
  }

:)