Embedded in this year's network and device estimates is hopeful news about the trajectory of devices and networks. It has never been easier to deliver pages quickly, but we are not collectively hitting the mark. Indeed, the latest CrUX data shows not even half of origins have passing Core Web Vitals scores for mobile users. Browsers will need to provide stronger incentives. This will be unpopular, but it is clearly necessary.

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Analysis of 2026 web performance budgets reveals that despite improved device and network capabilities (9 Mbps downlink, 100ms RTT baseline), less than half of mobile sites pass Core Web Vitals. The median mobile page now exceeds 2.6 MiB with JavaScript payloads doubling since 2015, creating a performance inequality gap that disproportionately affects users on older Android devices and slower networks. Data shows SPA architectures average only one soft-navigation per page load, questioning the justification for heavy JavaScript frameworks. The article provides concrete device recommendations (Samsung Galaxy A24 4G) and network testing parameters, arguing that browsers must provide stronger incentives to reduce bloat as organic developer restraint remains unlikely.

The Performance Inequality Gap, 2026