Query Running every few seconds

After install this plugin my I observed this in my slow query log –

# Time: 131216 23:22:46
# Query_time: 31.531834  Lock_time: 0.000157 Rows_sent: 0  Rows_examined: 2737546
SET timestamp=1387236166;
SELECT id, SUM(hits) FROM wp_PopularityPostsWidgetCache WHERE date > DATE_SUB(CURDATE(), INTERVAL 30 DAY)  AND wp_PopularityPostsWidgetCache.id IN (
							SELECT object_id
							FROM wp_term_relationships AS r
								 JOIN wp_term_taxonomy AS x ON x.term_taxonomy_id = r.term_taxonomy_id
								 JOIN wp_terms AS t ON t.term_id = x.term_id
							WHERE x.taxonomy = 'category' AND t.term_id IN (1132,3340,3341,3395,3413,3414,3590,3738,4273,4343,4344,4345,4346,4347)
							)  GROUP BY id ORDER BY SUM(hits) DESC LIMIT 5;

These queries are being run every couple of seconds. Is there a way to throttle this to only run every 15 minutes or so?

Thanks,
Mark
http://www.hotcouponworld.com

http://wordpress.org/plugins/popularity-posts-widget/