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STORE CONVERSION BENCHMARK

Simon Miller Revenue Leak Analysis

Simon Miller has eliminated rage-clicks with a smooth INP of 145ms, but their massive hero images and render-blocking scripts are destroying their top-of-funnel. An LCP of 2.9s guarantees that a huge percentage of mobile traffic bounces instantly. To make matters worse, a highly unstable layout with a CLS of 0.60 causes elements to shift unexpectedly, leading to accidental mis-clicks and immediate user frustration. To stop bleeding sales and escape their "F" grade, they need to fundamentally restructure how their theme loads assets.

UX & Conversion Grade

F

Based on Chrome UX friction data

Core Web Vitals

Largest Contentful Paint

2.9s

Measures loading performance. Slow LCP directly correlates to higher cart abandonment rates.

Cumulative Layout Shift

0.60

Measures visual stability. High CLS causes mis-clicks and immediate user frustration (bounces).

Interaction to Next Paint

145ms

Measures responsiveness. High INP values result in "rage clicks" when users try to add items to their cart.

Time to First Byte

666ms

Server response time. High TTFB indicates unoptimized backend queries or missing Edge caching.

First Contentful Paint

1.5s

First visual feedback. High FCP means users stare at a blank white screen before the site loads.

INTERLINKED BENCHMARKS

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Everything you need

Revenue Intelligence

Revenue Leak Detection

Superspeed's Predictive Conversion Engine correlates session performance with cart telemetry. We calculate the exact conversion rate difference between visitors experiencing "fast" loads and "slow" loads to output the precise amount of revenue lost—all without giving away the secret sauce.

Revenue Intelligence

Ghost Checkouts & Rage Clicks

Our Abandoned Cart Killer algorithm captures rapid, repeated clicks on unresponsive elements and links them to cart abandonment. We calculate the value of these ghost checkouts to evaluate recovery opportunities and pinpoint exactly where shoppers are dropping off.

Performance Optimization

Predictive Prerendering & Speculative Engine

Superspeed Neural Navigation Engine™ analyzes real-time user hover, touchstart, and purchase probability telemetry. Milliseconds before a shopper clicks a link, our active engine dynamically injects full Chrome speculation rules to pre-render the target page off-screen.

Performance Optimization

Automated Speed Engine

Superspeed uses a multi-tiered predictive algorithm that analyzes checkout data to figure out exactly what your customers want to buy before they even click. We pre-render the highest converting pages in the background, resulting in a zero-latency buyer journey.

Performance Optimization

Social Media Browser Bypass

When social traffic arrives, we detect the slow in-app browser and automatically bust the user out into their native browser (like Safari or Chrome), restoring Apple Pay and unlocking maximum conversion potential.

Revenue Intelligence

Automated Health Audits

Our structured insights engine evaluates your store telemetry daily to automatically uncover hidden health warnings. We prioritize the exact fixes that will increase your store's speed without requiring an engineering degree.

Loved by Merchants

Join thousands of Shopify store owners who have successfully plugged their revenue leaks.

View Wall of Love Read Case Studies

"Fantastic app - does exactly what it promises. The team at Superspeed has been extremely hand on and helpful with the setup of our app. Very happy with it!"

Genucel Skin Care
United States
G

"I really enjoyed working with Superspeed and you have had the best support of any app provider I have ever met. I am a huge supporter and will always be a fan!"

TravelPro
United States
T

"Dan is the best! I use Superspeed for all of my clients. I used to have my dev teams spend weeks on optimization. Now I just install Superspeed and ping Dan anytime we need to re-optimize. All of my client sites now pass Core Web Vitals no problem. I don't know how he does it, great price for always having a fast website! Thanks Dan!!!"

Hollywood DJ
United States
H

"Yeah, this app does what it says. It couldn't have been easier (literally one click) and the app is incredibly effective. The only thing better than the app is the customer service. They are a delight to work with."

Davek Canada
United States
D

"Great product, developers take a lot of effort to make sure it works well for you. Seeing gradual and steady improvement to our search rankings. A must have if you have multiple front end apps installed on your theme."

Allegiant Goods Co.
United States
A

"My store speed almost doubled since we installed this app. The customer support is also wonderful and very helpful."

Aurum Brothers
Netherlands
A

"Really incredibly good contact and honest advice on store speed. I would like to thank you very much for the nice mail contact and the advice..."

Paintball Buddy
Germany
P

"100% satisfied with the service from Super Speed support team, they have solved our web core vistals issues and our SEO ranking improved after the fix! Recommended"

Hangersforless
Australia
H

"Superspeed and Dan do an excellent job on the app. Their attention and support in solving problems is very precise and they continually strive to release updates that improve the performance of the online store."

EURO TE
Mexico
E

Frequently Asked Questions

Everything you need to know about this feature.

Does Simon Miller have good Core Web Vitals?

Our analysis shows www.simonmillerusa.com earns a F grade for mobile UX. With an LCP of 2.9s and an INP of 145ms, this metric indicates the level of friction customers experience at checkout.

Is Simon Miller built on Shopify?

How does Simon Miller's LCP affect revenue?

How responsive is the www.simonmillerusa.com checkout?

Is Simon Miller's website visually stable?

What is the biggest revenue leak on www.simonmillerusa.com?

How can Simon Miller improve their conversion rate?

Does Simon Miller need a headless Shopify build?

Can Superspeed fix www.simonmillerusa.com?

Is Simon Miller's mobile experience optimized?

How does Simon Miller's speed compare to competitors?

How much money is Simon Miller losing to slow load times?

Does Simon Miller use Shopify Plus?

What are the next steps for the Simon Miller engineering team?

Why is the Simon Miller cart page so slow?

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