disable cache clearing on stock change

/**
 * Plugin Name: Swift Performance Tweaks
 */

add_action('init', function(){
    remove_action('woocommerce_product_set_stock', array('Swift_Performance_Cache', 'clear_post_cache'));
    remove_action('woocommerce_variation_set_stock', array('Swift_Performance_Cache', 'clear_post_cache'));
});