first you need a profiler in place to see what is going on after you click on submit order button
Hey, I installed magento 2.3, the other pages load fast enough but the checkout payment page loads extremely slow. I have enabled cache, changed mode to ...
Re: Magento 2 Place order is taking more time. It could be a problem with sendmail configuration that is causing the delay. I would recommend ...
it takes very long time to and not processing the order, it comes back to the cart with items listed. this site loads very slow can, please let me know ...
The Magento “place order” step can take up to a minute. With thanks to this site I figured out how to fix slow checkouts.
Do you know Magento checkout slow speed significantly affects your website?
Slow Magento Checkout affects your conversion rate, lowers customer
... from the database and it started to work a little bit more ok. On orders with more than 2 products (for example) still working slow. Anybody can help me please?
Submitting an order is super slow.
This article provides an explanation and fix for the Magento Commerce 2.3.X issue where