title: UIImage in uitableViewcell slowdowns scrolling table
body: <p>I am loading image with data in my table view. Images are coming from web. I created method to get image url in model class.Model class has Nsdictionary and objects.
  But this images is slowing down scrolling .Here is my code</p>
  
  <pre><code>UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@",
                                                                                          [(Tweet *)[recentTweets objectAtIndex:indexPath.row]urlString]]]]];
  cell.imageView.image = image;
  </code></pre>
  
  <p>Please tell Where I am going wrong?</p>