Is your Apache Superset dashboard slow even when database queries finish in under a second? The
bottleneck might be your browser—not your database. Parsing large responses, transforming data, and
rendering thousands of DOM nodes can turn a fast query into a sluggish dashboard.
Custom chart plugins are especially vulnerable when tested only with sample datasets. This guide shows you how to identify and fix performance bottlenecks in the right order, using three essential tools: Superset's query timing, Chrome Performance panel, and React Profiler.
Discover how to pinpoint expensive transformations, reduce unnecessary renders, and optimize rendering performance. Measure first, optimize smarter, and make your dashboards faster.
Already building custom charts? Start with our guide to building a custom chart plugin for Apache Superset.
Find Your Dashboard's Bottleneck →






