Model optimisation
Relationship review, star-schema remediation, cardinality reduction and unused-column cleanup.
National Power BI service
Power BI Performance Optimisation
Ultron helps diagnose and improve slow Power BI reports, oversized models, expensive DAX and unreliable refresh routines.
Scope
What this service covers
DAX optimisation
Measure review, variable use, filter-context checks and simplification of expensive calculations.
Report performance
Visual load review, page design, interactions, filters and drill-through behaviour.
Refresh optimisation
Query folding checks, incremental refresh assessment, gateway review and source query improvements.
Use cases
When it is useful
The right scope depends on your current reporting estate, stakeholders, source data and support model.
- Users avoid dashboards because pages load slowly or visuals time out.
- Refresh is unreliable, too slow or difficult to monitor.
- A model has grown through repeated additions and needs disciplined cleanup.
- Capacity, gateway or source-system pressure is affecting reporting routines.
Delivery
How we deliver
Baseline performance
Measure report load, model size, refresh duration and obvious bottlenecks.
Review model and DAX
Inspect relationships, high-cardinality columns, measures and query patterns.
Prioritise fixes
Separate quick wins from structural model or source-system changes.
Validate improvements
Retest performance, document changes and recommend maintenance practices.
Related services
Continue through the Power BI service set
Plan a practical next step
Share the reporting problem, source systems and audience. We will recommend a focused path for this service and whether a broader implementation or governance engagement is needed.
FAQs
Power BI Performance Optimisation FAQs
What causes slow Power BI dashboards?
Common causes include poor model shape, high-cardinality columns, expensive DAX, too many visuals, inefficient source queries and refresh design issues.
Can you optimise a report without changing its appearance?
Sometimes. Model, DAX and refresh improvements may preserve the report design, but some visual or interaction changes can be needed for meaningful gains.
Do you use DAX and model review during optimisation?
Yes. We review DAX, relationships, table structure, column usage, refresh behaviour and report pages together.
Will optimisation require Microsoft Fabric?
Not necessarily. Many performance issues can be addressed within standard Power BI before considering broader architecture changes.
Australian delivery proof
See how we deliver practical Microsoft solutions.
Review approved Australian client stories across Power Apps, Power BI, Dataverse, healthcare, mining and manufacturing.