Jacob Fletcher 18f2f899c5 perf(ui): useAsTitle field lags on slow cpu (#12436)
When running the Payload admin panel on a machine with a slower CPU,
form state lags significantly and can become nearly unusable or even
crash when interacting with the document's `useAsTitle` field.

Here's an example:


https://github.com/user-attachments/assets/3535fa99-1b31-4cb6-b6a8-5eb9a36b31b7

#### Why this happens

The reason for this is that entire React component trees are
re-rendering on every keystroke of the `useAsTitle` field, twice over.

Here's a breakdown of the flow:

1. First, we dispatch form state events to the form context. Only the
components that are subscribed to form state re-render when this happens
(good).
2. Then, we sync the `useAsTitle` field to the document info provider,
which lives outside the form. Regardless of whether its children need to
be aware of the document title, all components subscribed to the
document info context will re-render (there are many, including the form
itself).

Given how far up the rendering tree the document info provider is, its
rendering footprint, and the rate of speed at which these events are
dispatched, this is resource intensive.

#### What is the fix

The fix is to isolate the document's title into it's own context. This
way only the components that are subscribed to specifically this context
will re-render as the title changes.

Here's the same test with the same CPU throttling, but no lag:


https://github.com/user-attachments/assets/c8ced9b1-b5f0-4789-8d00-a2523d833524
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2025-03-05 19:14:35 +00:00

Payload headless CMS Admin panel built with React

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Important

🎉 We've released 3.0! Star this repo or keep an eye on it to follow along.

Payload is the first-ever Next.js native CMS that can install directly in your existing /app folder. It's the start of a new era for headless CMS.

Benefits over a regular CMS

  • Deploy anywhere, including serverless on Vercel for free
  • Combine your front+backend in the same /app folder if you want
  • Don't sign up for yet another SaaS - Payload is open source
  • Query your database in React Server Components
  • Both admin and backend are 100% extensible
  • No vendor lock-in
  • Never touch ancient WP code again
  • Build faster, never hit a roadblock

Quickstart

Before beginning to work with Payload, make sure you have all of the required software.

pnpx create-payload-app@latest

If you're new to Payload, you should start with the website template (pnpx create-payload-app@latest -t website). It shows how to do everything - including custom Rich Text blocks, on-demand revalidation, live preview, and more. It comes with a frontend built with Tailwind all in one /app folder.

One-click templates

Jumpstart your next project by starting with a pre-made template. These are production-ready, end-to-end solutions designed to get you to market as fast as possible.

🌐 Website

Build any kind of website, blog, or portfolio from small to enterprise. Comes with a fully functional front-end built with RSCs and Tailwind.

We're constantly adding more templates to our Templates Directory. If you maintain your own template, consider adding the payload-template topic to your GitHub repository for others to find.

Features

Request Feature

🗒️ Documentation

Check out the Payload website to find in-depth documentation for everything that Payload offers.

Migrating from v2 to v3? Check out the 3.0 Migration Guide on how to do it.

🙋 Contributing

If you want to add contributions to this repository, please follow the instructions in contributing.md.

📚 Examples

The Examples Directory is a great resource for learning how to setup Payload in a variety of different ways, but you can also find great examples in our blog and throughout our social media.

If you'd like to run the examples, you can use create-payload-app to create a project from one:

npx create-payload-app --example example_name

You can see more examples at:

🔌 Plugins

Payload is highly extensible and allows you to install or distribute plugins that add or remove functionality. There are both officially-supported and community-supported plugins available. If you maintain your own plugin, consider adding the payload-plugin topic to your GitHub repository for others to find.

🚨 Need help?

There are lots of good conversations and resources in our Github Discussions board and our Discord Server. If you're struggling with something, chances are, someone's already solved what you're up against. 👇

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👏 Thanks to all our contributors

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