Front-End Optimization: My Journey to Accelerate Load Times in Heavy Front-End

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Front-End Optimization: My Journey to Accelerate Load Times in Heavy Front-End
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This story contains new, firsthand information uncovered by the writer.

Recently, a client approached us with a complaint that our product loads slowly in regions where old mobile devices and slow internet prevail. As a result, users are opting to switch to our competitors. In this article, I will share how I was able to improve the app's load time by implementing techniques such as import and render on visibility, image proxy, proficient work with SVG images, and other methods. I hope you'll find something useful for your app as well.

Selective Hydration During React hydration, React recreates the state it had on the server, essentially re-recreating the . This process can be time-consuming as React needs to parse the current DOM tree. Initially, there may be content in the viewport that should be visible, but it doesn't necessarily need to be interactive right away. To improve performance, I tried deferring hydration by wrapping these components in Suspense, which temporarily delays hydration and keeps them inactive.

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