Why Is My Looker Studio Dashboard Slow? Performance Guide

Slow dashboards frustrate users. These strategies dramatically improve performance.

Reduce Data Volume

Apply default date filters. Use extract data sources. Keep Sheets under 50K rows — beyond that, use BigQuery.

Optimize Sources

Push calculations upstream. Pre-compute in BigQuery/Sheets. Reduce field count. Use source-level filters.

Simplify Design

6-8 charts per page max. Minimize blending. Each chart = separate query.

Use Caching

Set cache to 12 hours for daily data. Second views load instantly. Get a performance assessment.