Power BI consultants optimize performance by fine-tuning data models, reducing load times, and improving query efficiency. They ensure that dashboards and reports load quickly, even when handling large datasets, allowing users to access insights without delays. Power BI consultant also optimize the data refresh process, automating updates and reducing manual intervention. By improving the overall performance of Power BI solutions, consultants enhance user experience and ensure that data-driven decisions can be made in real time. This results in greater productivity and more accurate insights, empowering teams to act swiftly based on the latest data.