PL-900 Demonstrate the capabilities of Power Apps Practice Question
A Power Apps canvas app uses a SharePoint list as its data source. Users report that the app is slow to load when the list contains over 10,000 items. What is the best approach to improve performance?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use delegation-compatible functions and filters in the app.
Delegation allows queries to be processed on the data source side, reducing the amount of data transferred and improving performance. Option D is correct because delegation-compatible functions (e.g., Filter, LookUp) ensure only relevant data is retrieved. Option A is wrong because increasing the data row limit loads more data, worsening performance. Option B is wrong because switching to Dataverse might help but is not the best approach—it requires migration and may not always be feasible. Option C is wrong because reducing columns only marginally reduces data size, but without delegation, performance issues persist due to large row counts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase the data row limit in the app settings.
Why it's wrong here
Increasing the limit doesn't improve performance; it may worsen it by transferring more data.
- ✗
Switch to a Microsoft Dataverse data source.
Why it's wrong here
Switching data sources is a larger change and not necessarily the best first step.
- ✗
Reduce the number of columns in the SharePoint list.
Why it's wrong here
While helpful, it does not solve delegation issues for large datasets.
- ✓
Use delegation-compatible functions and filters in the app.
Why this is correct
Delegation pushes processing to the data source, reducing the amount of data retrieved.
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