NOP Commerce Product Attribute Combinations and products added on basket webpage is very slow

Good Morning,

We have a store running thousands with attribute combinations per product.

The page works fine but once we add a product to the basket it becomes very slow and it takes about 1 minute to load the basket.

Other pages work fine on this server but it gets too slow from the moment we add values ​​to the basket and when we access the basket it takes a long time to enter.

There is some reason for this to happen.

Did you customize the solution? If yes, share ShoppingCartModelFactory.PrepareMiniShoppingCartModel and ShoppingCartModelFactory.PrepareShoppingCartModel method implementations.

No we do not customize these files.

We upgraded to version 4.20 and it worked better.

Can you please specify which portion of code taking more time to execute? Try to debug the code.