Displaying top x top-rated posts

I am not seeing the expected results when trying to display the top x, highest-rated posts. I’m not very familiar with php nor much of WordPress beyond modifying theme files, but this is the function I’m using:

function show_toprated () {
	$max_posts = 10;
	$required_rating = 2;
	$required_votes = 2;
$my_res = rmp_get_top_rated_posts( $max_posts, $required_rating, $required_votes );
	
//var_dump($my_res);

	foreach ($my_res as $my_named) {
	echo '<tr><td><img src="' . $my_named['thumb'] . '" width="150"></td><td>' . $my_named['avgRating'] . 'out of 5 with ' . $my_named['votes'] . ' votes.</td><td>' . $my_named['postID'] . '</td><td>' . $my_named['postLink'] . '</td></tr><br>';
}
	
}
add_shortcode('show_top_rated', 'show_toprated');

That pulls this info out:

	array(3) {
  [0]=>
  array(6) {
    ["postID"]=>
    int(702)
    ["avgRating"]=>
    int(4)
    ["title"]=>
    string(26) "TITLE"
    ["postLink"]=>
    string(58) "LINK"
    ["thumb"]=>
    string(99) "THUMB"
    ["votes"]=>
    int(3)
  }
  [1]=>
  array(6) {
    ["postID"]=>
    int(746)
    ["avgRating"]=>
    float(3.8)
    ["title"]=>
    string(31) "TITLE"
    ["postLink"]=>
    string(58) "LINK"
    ["thumb"]=>
    string(87) "THUMB"
    ["votes"]=>
    int(5)
  }
  [2]=>
  array(6) {
    ["postID"]=>
    int(742)
    ["avgRating"]=>
    float(3.5)
    ["title"]=>
    string(25) "TITLE"
    ["postLink"]=>
    string(54) "LINK"
    ["thumb"]=>
    string(87) "THUMB"
    ["votes"]=>
    int(2)
  }
}

Only 3 results. However, when I look through the postmeta table, I see more posts than 3 that have more than 2 votes and a rating of higher than 2:

mysql> select post_id,meta_key,meta_value from wp_postmeta where meta_key=’rmp_vote_count’ OR meta_key=’rmp_rating_val_sum’ OR meta_key=’rmp_avg_rating’ ORDER BY post_id;
+———+——————–+————+
| post_id | meta_key | meta_value |
+———+——————–+————+
| 702 | rmp_vote_count | 3 |
| 702 | rmp_rating_val_sum | 12 |
| 702 | rmp_avg_rating | 4 |
| 712 | rmp_vote_count | 1 |
| 712 | rmp_rating_val_sum | 3 |
| 712 | rmp_avg_rating | 3 |
| 742 | rmp_vote_count | 2 |
| 742 | rmp_rating_val_sum | 7 |
| 742 | rmp_avg_rating | 3.5 |
| 746 | rmp_vote_count | 5 |
| 746 | rmp_rating_val_sum | 19 |
| 746 | rmp_avg_rating | 3.8 |
| 755 | rmp_vote_count | 1 |
| 755 | rmp_rating_val_sum | 4 |
| 755 | rmp_avg_rating | 4 |
| 768 | rmp_vote_count | 8 |
| 768 | rmp_rating_val_sum | 37 |
| 768 | rmp_avg_rating | 4.6 |
| 772 | rmp_vote_count | 1 |
| 772 | rmp_rating_val_sum | 5 |
| 772 | rmp_avg_rating | 5 |
| 784 | rmp_vote_count | 2 |
| 784 | rmp_rating_val_sum | 6 |
| 784 | rmp_avg_rating | 3 |
| 792 | rmp_vote_count | 1 |
| 792 | rmp_rating_val_sum | 3 |
| 792 | rmp_avg_rating | 3 |
| 803 | rmp_vote_count | 3 |
| 803 | rmp_rating_val_sum | 15 |
| 803 | rmp_avg_rating | 5 |
| 808 | rmp_vote_count | 1 |
| 808 | rmp_rating_val_sum | 3 |
| 808 | rmp_avg_rating | 3 |
| 829 | rmp_vote_count | 9 |
| 829 | rmp_rating_val_sum | 40 |
| 829 | rmp_avg_rating | 4.4 |
| 835 | rmp_vote_count | 1 |
| 835 | rmp_rating_val_sum | 4 |
| 835 | rmp_avg_rating | 4 |
| 839 | rmp_vote_count | 9 |
| 839 | rmp_rating_val_sum | 40 |
| 839 | rmp_avg_rating | 4.4 |
+———+——————–+————+
42 rows in set (0.00 sec)`
`
posts #742, 746 and 702 are returned but I also expect to see posts 839, 829 and 803, for example.

I don’t know if my function is wrong, if I’m misunderstanding how this plugin interprets votes and ratings or there’s a bug. I can probably work out how to pull the data from the postmeta table within WordPress myself, but hoping there’s an easy solution here.

Thanks.