UnfoldCRO
Back to feature library
// Conversion Rate

Page Speed Optimizer

Intelligent script management — prioritise essentials, defer the rest, hit Core Web Vitals 90+.

  • Ships as a reusable theme block
  • No third-party app required
  • Works with Shopify OS 2.0
  • Deployed on 100+ live stores
// feature
Page Speed Optimizer
Conversion Rate
// typical impact

Numbers we earn — not invent.

90+
PSI score
-40%
LCP
-60%
Unused JS
+18%
Conversion lift
// why it matters

Built to move the metric you actually care about.

Benefit 01

Core Web Vitals green

LCP under 2.5s, INP under 200ms, CLS under 0.1 — the three Google watches, fixed end-to-end.

Benefit 02

Real device testing

Mid-range Android on 4G is the benchmark. If it flies there, it flies everywhere.

Benefit 03

Measurable revenue

Every 1s faster mobile PDP = ~7% CVR lift on average. This pays for itself in weeks, not months.

// use cases

When to reach for this.

01

Failing Core Web Vitals

Google Search Console flagging your URLs as 'Poor' or 'Needs Improvement'.

02

High mobile bounce

Mobile bounce rate 10%+ above desktop — usually a speed or rendering issue.

03

Theme bloat

Years of added apps and sections — slower every install. Time for a controlled cleanup.

// how it works

The build.

Speed Is Revenue

Experience the next level of eCommerce efficiency with our Page Speed Optimizer. By intelligently organising script loads on your Shopify theme, we prioritise the essentials and defer the rest until the perfect moment.

What We Optimise

  • Third-party script deferral and lazy loading
  • Image optimisation with next-gen formats (WebP/AVIF)
  • Critical CSS inlining and unused CSS removal
  • Core Web Vitals 90+ on mobile — guaranteed
// faq

Frequently Asked Questions

// talk to a human

Still have questions?

Book a free 30-minute teardown. Live audit of your store, prioritised fix list, no pitch — yours to keep either way.

Book a call
  • Only with your approval — and only ones genuinely unused. We audit, show you the blast radius of each, and you decide.

  • PageSpeed Insights + WebPageTest for synthetic, real-user Core Web Vitals from your Search Console and GA for field data.

  • Yes, positively. Core Web Vitals are a confirmed Google ranking factor since 2021, and faster pages earn higher CVR — which Google also notices indirectly.

// ready to ship?

Faster site. Higher conversion. More profit.

Unlock Core Web Vitals 90+ and proven CRO patterns across 100+ stores.