A report is slow and users complain. How do you diagnose the problem?

< 1 min read

First, I confirm where the delay occurs — whether during dashboard loading, query execution, or data refresh.
I check the report visuals to see if too many complex charts or heavy calculations are used.
Then I review the data model to identify large datasets or inefficient relationships.
I also validate whether filters or slicers are causing expensive queries.
In one project, a slow report was caused by multiple calculated columns and unoptimized joins.
After working with the data team, we optimized the query and reduced unnecessary visuals.
This improved report loading time significantly for users.
Finally, I validate performance with users to ensure the report responds quickly.

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