Enhancing performance optimization requires consultants to minimize data model size by removing unnecessary columns and tables. Leveraging Power BI’s Performance Analyzer helps identify slow-performing queries and visuals. Power BI consulting should use efficient DAX queries and optimize measures by avoiding overly complex calculations. Implementing aggregations, indexing, and caching strategies in the data source also speeds up report refresh and query response times. Additionally, reducing the number of visuals per report page and turning off unnecessary cross-filtering between visuals can improve dashboard responsiveness.