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Setting image to UIImageView in tableview cell makes the scrolling and rotation slow
cell.Icon=[self imageForCellAtIndex:indexPath.row];

-(UIImage*)imageForCellAtIndex:(int)index
{
  Obj *ob=[mList objectAtIndex:index];
  if([mIcons objectForKey:app.Icon100])
    return [UIImage imageWithData:[mIcons objectForKey:ob.IconLink]];
  else
  {
    [self DownloadIconForIndex:index];
  }
  return nil;
}

@property(nonatomic,assign)UIImage *AppIcon;

-(void)setIcon:(UIImage *)icon
{
  iconImageView.image=icon;
}