Hi!
Sure - open up single-portfolio.php and make sure that following line/code:
get_template_part( 'includes/related-posts' );
is called BEFORE your comments function. Eg replace:
//show related posts based on tags if there are any
get_template_part( 'includes/related-posts');
//wordpress function that loads the comments template "comments.php"
comments_template( '/includes/comments.php');
with
//wordpress function that loads the comments template "comments.php"
comments_template( '/includes/comments.php');
//show related posts based on tags if there are any
get_template_part( 'includes/related-posts');
Best regards,
Peter