What is query performance from a BA perspective?

< 1 min read

From a BA perspective, query performance means how quickly data loads for reports and dashboards used by stakeholders.
I focus on user experience — slow queries delay decision making.
In a sales dashboard, a report took 2 minutes to load due to multiple joins and no filters.
I worked with the data team to add date filters and pre-aggregated tables, reducing load to 10 seconds.
I also avoid selecting unnecessary columns and request indexed fields for frequent filters like date or customer_id.
For recurring reports, I suggest scheduled ETL summaries instead of heavy live queries.
My role is to identify slow reports, explain business impact, and collaborate on optimization.
Good performance ensures stakeholders trust and regularly use the analytics system.

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