Поиск слишком долго обрабатывает запрос, с чем это может быть связано?

5,01763701 сек. - [ SELECT dle_post.id, dle_post.autor, dle_post.date, dle_post.short_story, CHAR_LENGTH(dle_post.full_story) as full_story, dle_post.xfields, dle_post.title, dle_post.category, dle_post.alt_name, dle_post.comm_num, dle_post.allow_comm, dle_post.fixed, dle_post.tags, dle_post_extras.news_read, dle_post_extras.allow_rate, dle_post_extras.rating, dle_post_extras.vote_num, dle_post_extras.votes, dle_post_extras.view_edit, dle_post_extras.editdate, dle_post_extras.editor, dle_post_extras.reason FROM dle_post LEFT JOIN dle_post_extras ON (dle_post.id=dle_post_extras.news_id) WHERE dle_post.approve=1 AND (title LIKE '%Dying%Light%Ultimate%Edition%') ORDER BY date desc LIMIT 0,30 ]

$db->query( "SELECT id, short_story, title, date, alt_name, category FROM " . PREFIX . "_post WHERE " . PREFIX . "_post.approve=1" . $this_date . " AND (short_story LIKE '%{$query}%' OR full_story LIKE '%{$query}%' OR xfields LIKE '%{$query}%' OR title LIKE '%{$query}%') ORDER by date DESC LIMIT 5" );

10,84343910 сек. - [ SELECT dle_post.id, dle_post.autor, dle_post.date, dle_post.short_story, CHAR_LENGTH(dle_post.full_story) as full_story, dle_post.xfields, dle_post.title, dle_post.category, dle_post.alt_name, dle_post.comm_num, dle_post.allow_comm, dle_post.fixed, dle_post.tags, dle_post_extras.news_read, dle_post_extras.allow_rate, dle_post_extras.rating, dle_post_extras.vote_num, dle_post_extras.votes, dle_post_extras.view_edit, dle_post_extras.editdate, dle_post_extras.editor, dle_post_extras.reason FROM dle_post LEFT JOIN dle_post_extras ON (dle_post.id=dle_post_extras.news_id) WHERE dle_post.approve=1 AND (title LIKE '%VA%-%Top%40%Nederlandse%') ORDER BY date desc LIMIT 0,30 ]

            // ------ Запрос к базе    
            $from_num = $search_start + 1;
            
            if ($config['full_search']) {

                if( $sortby != "" ) $order_by = "ORDER BY " . $order_by; else $order_by = "";
                
                $sql_request = "$sql_find $order_by LIMIT $search_start,{$config['search_number']}";
    
            } else {
    
                $sql_request = "$sql_find ORDER BY $order_by LIMIT $search_start,{$config['search_number']}";
    
            }