We can raise on the production server 8.000 core instances. Each instance can process orders with the speed less than 4 ms = 250 transactions per second.
Totally 8000 instances x 250 transactions per second = 2.000.000 (2 mln) transactions second. Please check the screenshot.

The most important part of any exchange is speed. The core of the Exchase trading system is that it can handle about 2 million requests per second, do you have any data to check?
I wonder why we decided on the basis of 2 million cases per second.