Corona interactive very slow

Corona Corona for 3ds Max Help Required
1

I just assembled a new PC, and corona is working fast for the 2k and 4k renders. However, my interactive render speed is much much lower and I am unable understand the problem.

Following are my spces

Ryzen - 9 - 7950X - 16 Core Ram - 32gb

Have not installed any graphics card yet as corona uses CPU entirely but I will be installing an additional graphics card next month.

2

Can you clarify what you mean by saying that interactive is very slow? Is it ray/s is much lower compared to production render, or is it your computer is getting unresponsive/slow when IR is running, or maybe something else?