Power BI DAX Optimization
Fix slow Power BI reports with expert DAX optimization. We analyze, rewrite, and tune your DAX measures for maximum performance.
Common DAX Performance Issues
If any of these sound familiar, our DAX experts can help.
DAX Optimization Services
From quick performance fixes to complete DAX rewrites, we cover the full spectrum of optimization.
Performance Audits
We analyze your DAX measures using DAX Studio and Performance Analyzer to identify bottlenecks, unnecessary calculations, and optimization opportunities.
Query Optimization
Rewrite inefficient DAX patterns, eliminate iterator abuse, optimize CALCULATE filters, and reduce storage engine pressure.
Time Intelligence
Implement robust YTD, QTD, MTD, rolling averages, same period last year, and fiscal calendar calculations.
Calculation Groups
Replace repetitive measure variants with calculation groups for time intelligence, currency conversion, and dynamic formatting.
Advanced Patterns
Virtual relationships, dynamic segmentation, parent-child hierarchies, many-to-many patterns, and semi-additive measures.
Model Optimization
Column data type optimization, relationship tuning, aggregation tables, and DirectQuery/Import hybrid strategies.
Our DAX Optimization Methodology
A proven four-phase approach that consistently delivers 5-20x performance improvements.
Baseline Measurement
We capture baseline query timings using DAX Studio, record storage engine and formula engine durations, and document current user experience with Performance Analyzer recordings.
Root Cause Analysis
We analyze VertiPaq model statistics, identify oversized columns, examine row-by-row iterator patterns, and trace context transition chains that cause exponential query complexity.
Targeted Optimization
We rewrite measures using best-practice patterns, replace iterators with aggregators where possible, optimize CALCULATE filter arguments, and introduce variables for expression reuse.
Validation & Handoff
We re-measure all optimized queries, verify result accuracy against baseline values, document all changes with before/after comparisons, and train your team on maintaining performance.
DAX Optimization Resources
DAX Performance Techniques
Advanced optimization techniques for faster DAX calculations.
Essential DAX Patterns
Must-know DAX patterns for every Power BI developer.
Time Intelligence Patterns
Implement robust time intelligence with DAX best practices.
Star Schema Design
Data model design that enables fast, efficient DAX queries.
Composite Models Guide
Balance Import and DirectQuery for optimal DAX performance.
Incremental Refresh Setup
Configure incremental refresh for large datasets and faster loads.
Frequently Asked Questions
How do you identify DAX performance issues?
How much faster can you make our reports?
Can you optimize DAX in DirectQuery mode?
Do you provide DAX training for our team?
Get a DAX Performance Audit
Send us your slow report and we'll identify the optimization opportunities.
Industries We Serve
DAX optimization for enterprise data models across compliance-heavy industries.
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