too slow dashboard

Unfortunately, your plugin has been slowing down my site dashboard for some time. (Each task takes more than 15 to 20 seconds to complete!)

I installed the Query Monitor plugin and noticed that the php problem was caused by your plugin.

The error displayed by the plugin is as follows: PHP Errors:
{
level: Warning (Suppressed) /Message: putenv() has been disabled for security reasons / Count: 1/ Location: wp-content/plugins/woocommerce/includes/class-wc-regenerate-images-request.php:37/ Component: Plugin: woocommerce
}

So I disabled all plugins (except WooCommerce) and changed the template to the default WordPress template (Twenty Twenty). Unfortunately, the problem was not solved.

Also for WooCommerce product images, in customizer; I backed it to default size (1: 1), but the problem was not solved.

The total number of products I have on the site is not more than 11.
And the host I use is a strong host. (And I also have another site on a similar host, and although it has over 2600 products, I have no problem with the dashboard speed.) Therefore, I am sure that the problem is not due to the weakness of the server.

Of course, I do not know exactly where the problem of speed is from WooCommerce, but it is certainly from WooCommerce itself, not its interference with my theme or plugins or host.

Help if you can.

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