Consultants optimize performance by simplifying the data model, limiting visuals per page, and enabling lazy loading for visuals. Using pre-aggregated tables and optimizing DAX calculations reduces query complexity. Power Query is used for efficient data transformations, and Power BI consultant enable query folding whenever possible. They leverage tools like Performance Analyzer to identify bottlenecks and make adjustments. Selecting the appropriate storage mode (Import, DirectQuery, or Composite) based on data size and frequency of updates also ensures optimal performance.

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