El bucle for se parece a esto, que he escrito en vista se cargó, por lo que toma más tiempo cargar esta página.

for (int i=3; i<[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]count]; i++)
{


    if (i%3==0)
    {
        x=0;
        y++;
    }

    view=[[UIView alloc]initWithFrame:CGRectMake((x*250)+5, (y*404)+6, 244, 400)];
    [view setBackgroundColor:[UIColor whiteColor]];
    view.layer.borderColor=[[UIColor whiteColor]CGColor];
    view.layer.borderWidth=1.0;
    view.layer.cornerRadius = 5;
    view.layer.masksToBounds = YES;
    [scroller addSubview:view];

titlelabel=[[UILabel alloc]initWithFrame:CGRectMake(10, 10, 230, 20)];
    [titlelabel setText:[[[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]objectAtIndex:i]objectForKey:@"title"]objectForKey:@"text"]];
    [titlelabel setNumberOfLines:0];
    titlelabel.font=[UIFont boldSystemFontOfSize:15.0f];




    [titlelabel setBackgroundColor:[UIColor clearColor]];
    [titlelabel sizeToFit];
    [view addSubview:titlelabel];

    datelabel=[[UILabel alloc]initWithFrame:CGRectMake(10, 62, 190, 20)];
    [datelabel setText:[[[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]objectAtIndex:i]objectForKey:@"title"]objectForKey:@"text"]];
    [datelabel setNumberOfLines:0];
    datelabel.font=[UIFont fontWithName:@"arial" size:12.0f];
    [datelabel setBackgroundColor:[UIColor clearColor]];
    [datelabel sizeToFit];
    [view addSubview:datelabel];

    NSData *data=[[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:[[[[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]objectAtIndex:i]objectForKey:@"image"]objectForKey:@"text"]stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]]];
    NSLog(@"data= %@",data);
    if (data==NULL ||[[[[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]objectAtIndex:i]objectForKey:@"image"]objectForKey:@"text"] isEqualToString:@""])
    {
        textview=[[UITextView alloc]initWithFrame:CGRectMake(2,80, 238, 386)];
        [textview setText:[[[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]objectAtIndex:i]objectForKey:@"title"]objectForKey:@"text"]];
        [textview setFont:[UIFont fontWithName:@"ArialMT" size:14]];
        [textview setDelegate:self];
        [view addSubview:textview];
    }
    else
    {
        imageview=[[UIImageView alloc]initWithFrame:CGRectMake(7, 80, 230, 150)];
        [imageview setImage:[UIImage imageWithData:data]];
        [view addSubview:imageview];

        textview=[[UITextView alloc]initWithFrame:CGRectMake(5, 240, 238, 200)];
        [textview setText:[[[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]objectAtIndex:i]objectForKey:@"title"]objectForKey:@"text"]];
        [textview setFont:[UIFont fontWithName:@"ArialMT" size:14]];
        [textview setDelegate:self];
        [view addSubview:textview];
    }

}

Aquí, el problema es la imagen que recibe del servidor cada vez que se hace más lenta. Por favor, sugiera cómo hacerlo para que se cargue de forma lenta ...

gracias por adelantado