I will fix and optimize your slow power bi report, data model and dax

Is your Power BI report slow, wrong or impossible to maintain? I fix it.

I am a data and BI analyst with 8 years of experience in reporting and analytics, working every day with Power BI, DAX, Power Query and SQL. Most performance problems come from the same places: a flat table instead of a star schema, calculated columns doing the work of measures, bidirectional relationships, DAX written with FILTER where a filter argument would do, and queries that stop folding back to the source.

What you get:

• A written diagnosis of your file, with problems ranked by impact
• - A star schema data model with clean relationships
• - DAX measures rewritten to be faster and easier to read
• - Power Query steps reorganised so query folding is preserved
• - Refresh and rendering times measured before and after
• - A short summary of what was changed and why

I work with .pbix files connected to Excel, CSV, SQL Server, PostgreSQL and other relational sources.

Not sure which package fits? Write me a short description of your file and I will tell you honestly what it needs.