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Case Study5 min read

A Case Study in Web Performance: Cutting LCP by 60%

How we took a corporate site from slow to instant, and the exact image, caching, and rendering changes that did it.

Nutshell Bytes Team

May 8, 2026
A Case Study in Web Performance: Cutting LCP by 60%

Performance work is usually a series of unglamorous wins. This one had a clear before and after: a 12-language corporate site with a largest contentful paint in the slow category, and a target of instant.

What was slow

The original stack shipped large hero images, heavy client-side dependencies, and pages rendered entirely on the server for every request. Three compounding problems:

  • Unoptimized images adding megabytes to every page
  • JavaScript the marketing pages never needed
  • No caching strategy, so every visit hit the origin

The changes

We rebuilt rendering around static generation with incremental revalidation, moved images through a modern pipeline, and cut the marketing pages down to the script they actually used.

Every millisecond you remove from the load path is a millisecond you don't have to optimize later.

The result

LCP dropped by 60%. Organic bounce rate fell, and the pages stayed fast across all twelve languages because the strategy was shared, not duplicated.

Performance is rarely a mystery; it's a queue of ignored wins. Start with the images and the render path, and the numbers move fast.

Tags:PerformanceNext.jsCase Study

About Nutshell Bytes Team

The engineering team at Nutshell Bytes, optimizing the sites and platforms we build for real-world traffic.