Does CURCY process hidden/private products? Possible performance impact

Hello,

We run a WooCommerce store with about 500 products that are visible/published, and roughly 2,000 additional products that are set to Private and hidden from the catalog.

We’re investigating a site performance issue and want to rule out CURCY as a factor. Could you confirm:

Does CURCY process currency conversion/calculations for products that are Private or hidden from catalog, even though they’re not shown to customers? Or does it only run on visible/published products?
If it does process all products regardless of visibility, is there a setting to limit CURCY to only run on published/visible products?
Are there any known conflicts or performance issues when CURCY runs alongside the following plugins on our site: Discount Rules for WooCommerce (Flycart), WPLoyalty, WP Rocket (caching), and Cloudflare?

We’re trying to determine whether our ~2,000 hidden products are adding unnecessary load. Any guidance would be appreciated.

Thank you.