Delays on AJAX POST requests to your site?

This is on a client site, I am seeing these HTTP POST requests in the wp-admin backend on every page load:

POST
https://www.icegram.com/wp-admin/admin-ajax.php
?action=get_products_latest_details
&sku=IGA-ANALYTICS
&uuid=http%3A%2F%2Ftypeacommunications.com%2Fwp-admin%2F

They have a 5 second timeout, and error with this error:
cURL error 28: Connection timed out after 5004 milliseconds

Per Query Debugger:

Caller:
wp_get_update_data()
wp-includes/update.php:598
get_site_transient()
wp-includes/option.php:1718
apply_filters(‘site_transient_update_plugins’)
wp-includes/plugin.php:203
Icegram_Upgrade_v_0_2->overwrite_site_transient()
wp-content/plugins/ig-analytics/ig-upgrade-v-0.2.php:120
Icegram_Upgrade_v_0_2->check_for_updates()
wp-content/plugins/ig-analytics/ig-upgrade-v-0.2.php:91

Plugin: ig-analytics

Then happens again with this HTTP POST request that also fails the same way:

POST
https://www.icegram.com/wp-admin/admin-ajax.php
?action=get_products_latest_details
&sku=IGA-THEMES-PACK-1
&uuid=http%3A%2F%2Ftypeacommunications.com%2Fwp-admin%2F

It repeats both of these calls 5 times, at 5 seconds timeout each, for a total of 50 seconds delay minimum, often more, up to 75 seconds delay in any page load. It does not affect the front end, thankfully.

I went ahead and deactivated the Icegram Analytics plugin, and the calls then came from the Icegram Themes plugin instead, so I deactivated it as well, and the load time problems went away… not sure if they were outdated plugins, a known issue that’s been resolved. The Analytics plugin was v1.5.5 and the Themes plugin was v1.2.8.

Thanks.