To optimize Power BI dashboards for mobile users, developers should focus on responsive design by using the Power BI Mobile Layout feature. This allows for the rearrangement and resizing of visuals to fit smaller screens without losing clarity. Simplifying the number of visuals and using touch-friendly interactions such as filters and slicers improves user experience. Developers should also test dashboards across multiple devices and operating systems to ensure consistency. By ensuring that mobile-specific functionality, such as offline viewing and notifications, is enabled, Power BI development dashboards can provide a seamless mobile experience.