# How Libraries and Frameworks Affect Main-Thread Prioritization and Why SSR Is Not a Silver Bullet

DevFeed: [How Libraries and Frameworks Affect Main-Thread Prioritization and Why SSR Is Not a Silver Bullet](<https://devfeed.tech/articles/when-everything-s-important-nothing-is-39443.md>)

Original publisher: [Read original article](<https://aerotwist.com/blog/when-everything-is-important-nothing-is>)

Author: Paul Lewis

Published: 2016-12-10T00:00:00Z

Content type: opinion

Language: en

Sources: [Paul Lewis](<https://devfeed.tech/sources/paul-lewis.md>)

Topics: [Preact.js](<https://devfeed.tech/topics/preact.md>), [Frameworks](<https://devfeed.tech/topics/frameworks.md>), [Server-side rendering](<https://devfeed.tech/topics/server-side-rendering.md>), [modern web development](<https://devfeed.tech/topics/modern-web-development.md>)

Tags: [browsers](<https://devfeed.tech/tags/browsers.md>), [css](<https://devfeed.tech/tags/css.md>), [devtools](<https://devfeed.tech/tags/devtools.md>), [loading](<https://devfeed.tech/tags/loading.md>), [performance](<https://devfeed.tech/tags/performance.md>), [preact](<https://devfeed.tech/tags/preact.md>), [server-side-rendering](<https://devfeed.tech/tags/server-side-rendering.md>)

## AI overview

An exploration of whether modern libraries and frameworks prioritize components during startup. Using Preact as a starting point, the article argues that libraries and frameworks can occupy the main thread without yielding, and that server-side rendering does not by itself solve the underlying performance problem.

## Source excerpt

Do libraries and frameworks prioritize components on boot? If so, how, and if not what can we do? And, in exploring that question, I discovered that Server-Side Rendering isn't a silver bullet!