Users indicate that when they build reports from the data model, the reports take a long time to load. You need to recommend a solution to reduce the load times of the reports. Solution: You…

Calculation groups are a modeling construct for consolidating logic, not a direct performance optimization feature that reduces report load times for existing measures.

Calculation groups organize and simplify repetitive DAX logic, which improves manageability and consistency across reports. However, merely moving existing measures into a calculation group does not directly optimize the underlying data model's performance or inherently reduce the load times of reports that already contain those measures.