Flatsome Ajax Search high cpu usage

I am getting CPU Abuse reports from Siteground on GoGeek package, one of the main causes idenitified by support. They are seeing 10,000 heartbeat requests per day, eventhough I have heartbeat disabled everywhere! They say the below, can anyone help?

It seems that there is a plugin or a theme that is causing the heartbeat to be executed. All of the requests to the admin-ajax.php are the same as the following:
Code:
2a02:c7f:ba33:a400:111b:d3c8:4458:2d8d – – [21/Feb/2020:01:00:55 +0000] “GET /wp-admin/admin-ajax.php?action=flatsome_ajax_search_products&query=Jellycat+bears HTTP/1.0” 200 65 “https://www.maisonwhite.co.uk/product/jellycat-bartholomew-bear-huge/?utm_campaign=1722741546&utm_source=google&utm_medium=cpc&utm_content=335889290818&utm_term=&adgroupid=70143895400&gclid=EAIaIQobChMIzfWDkLjh5wIVg7TtCh0aug7IEAQYFyABEgI_o_D_BwE” “Mozilla/5.0 (iPhone; CPU iPhone OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.4 Mobile/15E148 Safari/604.1”

The requests are made by the plugin Flatsome Ajax Search. You need to review the plugin and reduce it’s executuons.

The page I need help with: [log in to see the link]