Customize ACF fields and options.

acf-customize.php

<?php

/**
 * Hide ACF Edition buttons for repeater for publication_most_commented, etc
 */
function admin_print_scripts() {
  echo "<script type='text/javascript'>jQuery(\"[data-name='publication_most_commented'], [data-name='publication_by_user'], [data-name='publication_most_liked']\").find('.acf-actions, .acf-row-handle').hide();</script>";
}
add_action( 'admin_print_footer_scripts', 'admin_print_scripts' );

/**
 * Disable fields for edition
 *
 * @param array $field
 *
 * @return array
 */
function disable_field( $field ) {
	$field['disabled'] = 1;

	return $field;
}
add_filter( 'acf/load_field/name=group_most_active', 'disable_field' );