problem with load websait

The first thing you’ll want to do is test the shop page load with only WooCommerce activated. This will help determine if the problem is indeed with WooCommerce or with other plugins creating a high load time(TTFB).

Take a look at this as well:

https://docs.woocommerce.com/document/troubleshooting-a-slow-site/

Install this plugin: https://wordpress.org/plugins/query-monitor/, and see what queries are heavy.

Not much I can do here to help you generally increase site performance. If you find something specific that could be optimized, you can open up an issue / PR in github.

50k products is a bit, but certainly not too many. I’d look into your server performance, and check the specific queries that could be causing issues (and try to work around them).

Caching will also go a long way.

Sorry, but I can’t help outside of this forum. The forums here are used for basic troubleshooting and error reporting.

You may need to hire a web developer with performance / server experience.