# From latency to instant: Modernizing GitHub Issues navigation performance

DevFeed: [From latency to instant: Modernizing GitHub Issues navigation performance](<https://devfeed.tech/articles/from-latency-to-instant-modernizing-github-issues-navigation-performance-19850.md>)

Original publisher: [Read original article](<https://github.blog/engineering/architecture-optimization/from-latency-to-instant-modernizing-github-issues-navigation-performance/>)

Author: Natalie Guevara

Published: 2026-05-14T16:00:00Z

Content type: article

Language: en

Sources: [GitHub](<https://devfeed.tech/sources/github.md>)

Topics: [GitHub Issues](<https://devfeed.tech/topics/github-issues.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [client](<https://devfeed.tech/topics/client.md>), [Web](<https://devfeed.tech/topics/web.md>)

Tags: [architecture](<https://devfeed.tech/tags/architecture.md>), [architecture-optimization](<https://devfeed.tech/tags/architecture-optimization.md>), [caching](<https://devfeed.tech/tags/caching.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [github](<https://devfeed.tech/tags/github.md>), [github-issues](<https://devfeed.tech/tags/github-issues.md>), [latency](<https://devfeed.tech/tags/latency.md>), [local](<https://devfeed.tech/tags/local.md>), [performance](<https://devfeed.tech/tags/performance.md>), [web-performance](<https://devfeed.tech/tags/web-performance.md>)

## AI overview

The GitHub Issues team describes how it improved navigation performance by moving work to the client, rendering from locally cached data, and revalidating in the background. The approach uses IndexedDB, preheating, and a service worker to reduce perceived latency, while acknowledging implementation tradeoffs.

## Source excerpt

How the GitHub Issues team used client-side caching, smart prefetching, and service workers to make navigation feel instant. The post From latency to instant: Modernizing GitHub Issues navigation performance appeared first on The GitHub Blog.