Hi @hallwrk,
you can use filter, see below how to use.
https://github.com/airesvsg/acf-to-wp-rest-api#filter
add_filter( 'acf_to_wp_rest_api_post_data', function( $data, $object, $context ) {
if ( isset( $data['type'] ) && 'my_post_type' == $data['type'] && isset( $data['acf'] ) ) {
unset( $data['acf'] );
}
return $data;
}, 10, 3 );