Power BI consultantenhance performance by optimizing data models, refining DAX (Data Analysis Expressions) queries, and using features like aggregations and incremental data loads. They streamline the number of visuals on dashboards and utilize efficient data retrieval methods, such as DirectQuery or Import mode. Consultants also use the Performance Analyzer tool to identify bottlenecks and optimize report rendering time. These optimizations ensure faster, more responsive dashboards that enhance user experience.
