Performance Budgets for High-Impact Marketing Sites

Marketing sites compete on feel as much as information. Our job is to deliver both without punishing mobile networks. We set budgets early: LCP, INP, total JS weight, and largest media assets.

These budgets act as constraints that drive creativity. When you cannot rely on massive unoptimized videos, you find more elegant ways to create motion.

Heavy visuals load progressively. Hero scenes defer until after first paint; reduced-motion preferences disable nonessential animation entirely.

• Blurhash or dominant-color placeholders for hero media
• WebGL and Spline only after idle or intersection
• No autoplay video with sound; ever
• Font subsets per route, not one 800KB family

We measure on real devices, not just Lighthouse in CI. Lab scores are a gate; field data is the truth.

Tools like Web Vitals provide RUM data. We track the P75 experience to ensure the majority of users get a fast site.

When budgets slip, we trade — smaller textures, fewer simultaneous effects, shorter video loops — instead of silently shipping a sluggish page.

Performance is a feature. A site that looks beautiful but takes ten seconds to load will lose visitors before they even see the design.