slow query error

Hello we’ve been having lagging issues within the admin portal of WordPress and our provider said one of the issues is business directory plug in is throwing a slow query error on every page. They have provided the following:

SELECT ID
FROM wp_kxtiui2qua_posts
WHERE post_type = 'page'
AND post_status in ( 'publish', 'private' )
AND post_content REGEXP '\\[businessdirectory\\]|\\[business-directory\\]|\\[WPBUSDIRMANUI'
ORDER BY ID DESC

Can someone please advise how to resolve this?

Thank you!