Very Slow in the last step of Order Checkout

Dear experts,

kanarygifts.com/Woo

Please perform an order using either COD or wire transfer. You will find out that the last step in the checkout process which is before the thank you page is extreeeeeeeeeeeeemly slow. It takes almost 2-4 minutes until you receive the thank you page.

Please check this issue urgently, It’s critical and if our customer experience this, we will lose all orders.

Regards,