Hi @wleefro
What I have in mind is you can limit the returned terms so it will load faster. You can do it like this:
function my_taxonomy_query( $args, $field, $post_id ) {
// modify args
$args['number'] = 10;
// return
return $args;
}
add_filter('acf/fields/taxonomy/query', 'my_taxonomy_query', 10, 3);
If you want to find specific terms, just search it on the field input.
I hope this helps.