Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Learn from the best! Meet the four finalists headed to the FINALS of the Power BI Dataviz World Championships! Register now

Reply
SupriyaChaugule
Frequent Visitor

Optimizing Power BI Custom Connector Performance for Faster Data Loading

I am building a custom Power BI connector to fetch data from an API. While fetching data from the API is relatively fast, the process of loading it into Power BI takes a significant amount of time. I am looking for ways to optimize the data loading process.

Are there best practices to improve performance when loading data into Power BI from a custom connector? Additionally, are there alternative ways to structure the JSON data output from the API to make it more efficient for Power BI processing?

Any insights or recommendations on optimizing data loading performance in Power BI would be greatly appreciated!

1 ACCEPTED SOLUTION
lbendlin
Super User
Super User

- structure your JSON so it represents simple arrays. Avoid multi level nesting

- consider using data extracts for immutable data to avoid pulling the same data over and over again

- experiment with the record count - your API may have a performance sweet spot there

View solution in original post

5 REPLIES 5
Anonymous
Not applicable

Hi @SupriyaChaugule ,

Did lbendlin 's suggestions help with your scenario? if that is the case, you can consider Kudo or accept his suggestions to help others who faced similar requirements.

Regards,

Xiaoxin Sheng

Hi @SupriyaChaugule,

 

Thank you for reaching out to Microsoft Fabric Community.

 

Thank you @lbendlin for the prompt response.

 

As we haven’t heard back from you, we wanted to kindly follow up to check if the solution provided by the super user resolved your issue? or let us know if you need any further assistance.
If our super user response resolved your issue, please mark it as "Accept as solution" and click "Yes" if you found it helpful.

 

Thanks and regards,

Anjan Kumar Chippa

Hi @SupriyaChaugule,

 

We wanted to kindly follow up to check if the solution provided by the super user resolved your issue.
If our super user response resolved your issue, please mark it as "Accept as solution" and click "Yes" if you found it helpful.

 

Thanks and regards,

Anjan Kumar Chippa

Hi @SupriyaChaugule,

 

As we haven’t heard back from you, we wanted to kindly follow up to check if the solution provided by the super user resolved your issue.
If our super user response resolved your issue, please mark it as "Accept as solution" and click "Yes" if you found it helpful.

 

Thanks and regards,

Anjan Kumar Chippa

lbendlin
Super User
Super User

- structure your JSON so it represents simple arrays. Avoid multi level nesting

- consider using data extracts for immutable data to avoid pulling the same data over and over again

- experiment with the record count - your API may have a performance sweet spot there

Helpful resources

Announcements
Join our Fabric User Panel

Join our Fabric User Panel

Share feedback directly with Fabric product managers, participate in targeted research studies and influence the Fabric roadmap.

February Power BI Update Carousel

Power BI Monthly Update - February 2026

Check out the February 2026 Power BI update to learn about new features.

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.

Users online (5,729)