Start by understanding the audience and their data needs. Use a clean layout, focus on key metrics, and avoid clutter. Use consistent colors and fonts to improve readability. Interactive elements like slicers and filters should be strategically placed to enhance user engagement. Always prioritize data accuracy and clarity over aesthetic appeal. Testing the Power BI dashboards on different devices ensures it’s responsive. Lastly, performance optimization through reducing unnecessary calculations and simplifying visuals is crucial for a smooth user experience.