Abstract

Mobile web performance has become increasingly
important as users expect fast and reliable experiences across
a wide range of devices and network conditions. Traditional
rendering methods often struggle to meet these demands due to
heavy JavaScript execution and long network round trips. This
paper examines two modern rendering techniques, React Server
Components and edge rendering, and discusses how they address
key mobile performance challenges. By reducing JavaScript
workload on the client and generating responses closer to the
user, these approaches can improve Core Web Vitals such as LCP,
FID/INP, and TTFB. While both methods offer promising results,
they also introduce new architectural and runtime limitations.
This state-of-the-art overview evaluates their potential impact
on mobile web performance and highlights open challenges for
future research.