Disable WooCommerce total spent / order count meta calculations

gistfile1.php

<?php

add_filter( 'get_user_metadata', 'mtkdocs_filter_user_metadata', 10, 4 );
function mtkdocs_filter_user_metadata( $value, $object_id, $meta_key, $single ) {
    // Check if it's one of the keys we want to filter
    if ( in_array( $meta_key, array( '_money_spent', '_order_count' ) ) ) {
        // Return 0 so WC doesn't try calculate it
        return 0;
    }
    // Default
    return $value;
}