query slow problem

Hi.
Congratulation with this awesome plugin…You are the Best!:-D
Lately, I noticed a great slowdown of the site that sometimes led to the blockade of the site. report following, using query queries, queries that slow down the site a lot.

SELECT DISTINCT meta_value FROM wp_postmeta WHERE meta_key LIKE ‘_wpmoly_movie_release_date’ ORDER BY meta_value +WPMOLY_Utils::get_used_meta()wp-content/plugins/wpmovielibrary/includes/classes/class-wpmoly-utils.php:1114 Plugin: wpmovielibrary 1354 0,0807
SELECT meta_value FROM wp_postmeta WHERE meta_key LIKE ‘_wpmoly_movie_spoken_languages’ ORDER BY meta_value +WPMOLY_Utils::get_used_meta()wp-content/plugins/wpmovielibrary/includes/classes/class-wpmoly-utils.php:1114 Plugin: wpmovielibrary 1611 0,0736
SELECT meta_value FROM wp_postmeta WHERE meta_key LIKE ‘_wpmoly_movie_production_companies’ ORDER BY meta_value +WPMOLY_Utils::get_used_meta()wp-content/plugins/wpmovielibrary/includes/classes/class-wpmoly-utils.php:1114 Plugin: wpmovielibrary 1611 0,0722
SELECT meta_value FROM wp_postmeta WHERE meta_key LIKE ‘_wpmoly_movie_production_countries’ ORDER BY meta_value +WPMOLY_Utils::get_used_meta()wp-content/plugins/wpmovielibrary/includes/classes/class-wpmoly-utils.php:1114 Plugin: wpmovielibrary 1611 0,0734
SELECT meta_value FROM wp_postmeta WHERE meta_key LIKE ‘_wpmoly_movie_certification’ ORDER BY meta_value +WPMOLY_Utils::get_used_meta()wp-content/plugins/wpmovielibrary/includes/classes/class-wpmoly-utils.php:1114 Plugin: wpmovielibrary 1611 0,0733

ow can I solve this problem? it causes me continuous blocks both on backend and frontend. Many thanks and congratulations for your excellent work