What should I do if my report is slow to load?

Here are steps to consider when your Power BI report is slow to load:

1. Optimize Data Model:

   • Review your data model for inefficiencies. Remove unnecessary columns and tables.
   • Consider using Import mode for smaller datasets that can fit in memory for faster access.

2. Reduce Data Volume:

   • Filter data to load only what's necessary for your report. Apply filters, date ranges, or aggregation to reduce data volume.

3. Indexing and Performance Tuning:

   • Ensure that your data source, such as a database, is properly indexed and tuned for optimal query performance.

4. Use Summary Tables:

   • Create summary tables or pre-aggregated data to speed up calculations and reduce query complexity.

5. Minimize Custom Calculations:

   • Limit the number of custom DAX calculations and complex measures. Simplify DAX formulas where possible.

6. Data Compression:

   • Optimize data compression settings in Power BI to reduce the memory footprint.

7. Data Refresh Scheduling:

   • Schedule data refresh during off-peak hours to avoid report slowdowns during working hours.

8. Use DirectQuery and Live Connection Sparingly:

   • While DirectQuery and Live Connection provide real-time data access, they may slow down report loading. Consider Import mode if performance is a priority.

9. Reduce Visual Complexity:

   • Simplify visuals by reducing the number of elements, data points, and interactions. Avoid using unnecessary slicers or filters.

10. Optimize Visual Interactions:

    • Set the interactions between visuals carefully to minimize the complexity of interactions.

11. Use Aggregations:

    • Aggregations can significantly enhance performance for large datasets. Configure aggregations in the Power BI model.

12. Power BI Service Considerations:

    • Be mindful of the capacity and resources available in the Power BI service. You might need to adjust the capacity if you're experiencing slow performance online.

13. Network and Hardware:

    • Ensure that your network connection and hardware (especially for the Power BI Service) are optimized for performance.

14. Stay Up to Date:

    • Ensure that you are using the latest version of Power BI Desktop and Power BI Service, as updates often include performance enhancements.

15. Monitor Performance:

    • Use Power BI Performance Analyzer to identify bottlenecks and areas for improvement.

If you find it challenging to resolve performance issues in your Power BI report, seeking guidance from a Power BI expert through Power BI online coaching on UrbanPro.com can be immensely beneficial. UrbanPro is a trusted marketplace for finding experienced Power BI tutors and coaching institutes who can provide personalized assistance to enhance your report's performance and overall Power BI skills.