Managing data refresh rates is challenging because Power BI has specific limitations on refresh intervals, especially in Power BI Pro licenses. <a href="www.imensosoftware.com/technologies/power-bi-development/">Power BI consulting services</a> need to optimize data models for quicker refresh times and may recommend using Power BI Premium for more frequent refreshes. The complexity increases when dealing with real-time data streams, requiring direct integrations with APIs or Azure Stream Analytics. Handling large volumes of data without impacting refresh times requires careful planning of incremental refresh, partitioning data, and ensuring the right scheduling of data refresh cycles to keep reports up to date.