Angular vs SolidJS: which is better for reactive performance?

SolidJS wins the reactive performance comparison, because its reactivity model updates only the exact DOM nodes tied to a changed signal, with no diffing step in between. Angular narrows that gap when a team builds with OnPush change detection and the Signals API Google shipped in Angular 16, released in May 2023, but its default change detection cycle still checks more of the component tree than SolidJS ever touches for the same update.

When does Angular hold up on reactive performance?

Angular's change detection cost shows up mainly in large component trees with frequent state changes spread across many bindings. Teams that apply OnPush change detection, or move state to Angular's Signals API, remove a large share of that overhead because signal-based components skip the zone-triggered checks that slow down the default setup. In CRUD-heavy enterprise apps, where updates happen occasionally rather than continuously, Angular's change detection overhead rarely becomes the visible bottleneck. Network latency and data fetching tend to dominate perceived speed instead.

When does SolidJS pull ahead?

SolidJS shows its advantage in interfaces with constant, high-frequency updates such as live dashboards, data grids, or drag-and-drop interactions. Because each signal maps directly to one DOM update rather than triggering a render pass across a component, SolidJS avoids the reconciliation cost that even virtual-DOM frameworks pay on every change. The open source js-framework-benchmark project, maintained independently of any single framework vendor, has repeatedly placed SolidJS close to plain JavaScript on DOM update speed, ahead of Angular and most virtual-DOM-based frameworks on the same test suite.

Who fits what?

A team building a highly interactive interface, such as a trading dashboard or a real-time analytics tool where every millisecond of update time is visible to the user, gets more value from SolidJS's compiled reactivity model. A team building a large, multi-year enterprise application, where TypeScript conventions and a predictable long-term upgrade path matter more than shaving milliseconds off DOM updates, is usually better served by Angular, especially once OnPush and Signals are part of the standard setup.

Published at: 2026-07-21