The best practices for improving CPQ performance
The term performance refers to the ability to process an action faster. For example, you want data to load, add, quick-save, and save records, complete calculations in the Quote Line Editor (QLE), and generate quote documents faster. When considering scale, we are discussing the increase in processing capacities. For example, you want to process as many records as possible. In addition, you want to load and save more quote lines, select more products, and calculate more rules.
CPQ performance and optimization depend on the Salesforce platform's and Sales Cloud's performance, as CPQ is built on top of them.
Make sure that your Salesforce environment is ready for a CPQ implementation and that you're not just adding the managed package to an already overburdened environment. For example, if the existing release management process continuously fails due to performance issues, then you should attack that problem first...