Optimizing the performance of JSS apps

Version: 20.x

Performance optimization in JSS is a complex topic because different optimizations can be enacted at each layer of the stack. Optimizing performance is not a front-end problem, a back-end problem, or a DevOps problem. Each department involved in building and deploying a JSS application must analyze their slice of the stack and work together to adhere to a performance budget.

Recommendations

When considering solutions for how to optimize the performance of your JSS applications, we recommend:

  • Leverage caching.

  • Avoid using JavaScript Renderings unless they are absolutely necessary. This type of rendering initializes a new Node instance for each rendering, and even having more than 2-3 on a page can noticeably influence load times.

  • Minimize requests to the server.

  • Avoid running applications in integrated mode on Sitecore Content Delivery servers.

  • Follow the performance optimization guides for your chosen front-end framework.

  • Follow performance best practices in the browser layer.

  • Enable Keep-Alive for your web server.

  • Consider infrastructure performance improvements where possible (using Node clusters and assigning resources clearly to avoid unexpected results).

Do you have some feedback for us?

If you have suggestions for improving this article,