From the look of your code, you have the field set to return the URL of the image.
To do it differently you would need to alter the return value of the field to return an array, which would likely mean altering the code everywhere that this field is used.
Instead of doing that I would get the unformatted value from ACF by using false as the 3rd argument
$page_image = get_field('title', $page_title->ID, false);
And then I’d get the image I want using
$image = wp_get_attachment_image_src($page_image, 'the size you want here');
?>
img src="<?php echo $image[0]; ?>" />
