Hi dano1968,
Thank you for the question. I believe that I am seeing something similar. I have just over 200 open invoices for my customer and am waiting about 2 minutes for the page to be populated and later redrawn. I am looking into this and plan to bring it to the attention of my development team.
However, I am wondering if 200 open invoices for a customer is going to be a typical volume for you? This seems to me to be a rather high volume for the Dynamics 365 for Financials, business edition product.
