Most efficient way to display current post subcategories?

After looking at get_the_terms() again I think I found a better solution:

functions.php

global $reviews_cat_id_brand;
$reviews_cat_id_brand = 158; // using # in case string changes

if( !function_exists('reviews_print_subcat_link') ){
      function reviews_print_subcat_link($cat_id){
        $items = get_the_terms(get_the_ID(), 'review-category');
        $subcat_array = [];

        foreach ($items as $item) {
            if($item->parent === $cat_id) {
                $subcat_array[] = '<a href="'.get_term_link($item).'">'.$item->name.'</a>';
            }
        }
        return $subcat_array;
      }
    }

review-page.php

$reviews_subcat_links_brand = reviews_print_subcat_link($reviews_cat_id_brand);

if ($reviews_subcat_links_brand) {
  echo '<tr><td>Brand:</td>';
  echo '<td>'.implode(', ', $reviews_subcat_links_brand).'</td></tr>';
}

There still might be a better solution but this cuts down the looping quite a bit.