Visibility of purchase orders on record payment slip

Dear Support,

I have a customer which have a lot of purchase order and goods receipt.

Each time that he selects a supplier, he has need to wait 2-3 minutes for that the documents appears on the right of the screen.

In his process, all AP invoices are created based on the Goods receipt.

Is that possible to change the filter for that the purchase orders don’t appear on the right of the screen so that the display is much faster?

Thanks in advance for your reply.

Best Regards

Jonas Bernhard