Every extra second of load time costs you roughly 7% in conversions. Find out what that means in ringgit.
Annual Revenue You're Leaving on the Table
RM 52,164
by going from 4s to 2s load time
Current Conversion Rate
2%
at 4s load time
Projected Conversion Rate
2.29%
at 2s load time
Current Monthly Revenue
RM 30,000
Projected Monthly Revenue
RM 34,347
A 2.0-second improvement translates to RM 52,164 per year in recovered revenue. Focus on image compression, lazy loading below-the-fold content, and eliminating render-blocking resources. These changes can usually be done in a 2-week sprint.
Speed is not a technical metric. It is a revenue metric. Research from Google, Deloitte, and Portent consistently shows that every additional second of page load time costs you roughly 7% of conversions. That number compounds: a site loading in 5 seconds has already lost over a quarter of its potential conversions compared to a 1-second site.
The relationship is not linear — it is exponential. Going from 1 second to 2 seconds hurts. Going from 4 seconds to 5 seconds is devastating, because you are losing 7% of an already-reduced conversion rate. That is why this calculator uses compound math: 1.07 raised to the power of seconds saved.
Shoppers are impatient. A Portent study found that ecommerce conversion rates drop by an average of 0.3% for each additional second of load time in the 0-5 second range. That translates to roughly a 7% relative drop per second — meaning if your conversion rate is 2% at 2 seconds, it drops to about 1.86% at 3 seconds.
For a store doing RM 50,000 a month, shaving 2 seconds off load time could mean an extra RM 7,000+ per month — or over RM 84,000 per year. That is not marginal. That is the budget for a full website redesign, paid for by the speed improvement alone.
Use the Website Redesign ROI Calculator to see how quickly a faster, better-converting site pays for itself.
The usual suspects: unoptimized images (the number one offender), too many third-party scripts, render-blocking JavaScript, no CDN, and bloated themes with features you never use. On Shopify specifically, excessive apps and unoptimized Liquid templates are the most common culprits.
The fix is not always a complete rebuild. Often, a focused conversion rate optimization engagement that includes performance work can shave 1-3 seconds off load time in a matter of weeks. Image compression, lazy loading, script deferral, and critical CSS extraction are high-impact, low-risk changes.
Run your site through a full SEO audit to identify performance issues alongside other technical problems that may be hurting your rankings and conversions.
Multiple studies from Google, Portent, and Deloitte have found that each additional second of page load time reduces conversions by approximately 7% on average. The exact number varies by industry, but 7% is a well-supported benchmark for ecommerce. Portent's 2019 study specifically found that conversion rates drop by 4.42% with each additional second of load time in the 0-5 second range, with the relative impact being close to 7% for typical ecommerce conversion rates.
Yes. Amazon famously found that every 100ms of latency cost them 1% of sales. Walmart saw a 2% increase in conversions for every 1-second improvement. For smaller stores, the relative impact is even larger because you have fewer visitors — each lost conversion hurts more. Speed is the easiest conversion rate optimization most stores have never done.
Under 2 seconds is fast, 2-4 seconds is average, and anything over 4 seconds is slow. Google recommends a Largest Contentful Paint (LCP) under 2.5 seconds as a "good" Core Web Vital score. Most Shopify stores load in 3-5 seconds — meaning there is almost always room for improvement.
Use Google PageSpeed Insights (free) for a quick check, or Google Search Console's Core Web Vitals report for real-user data. For more detail, run a test on WebPageTest.org which shows a waterfall of every resource your page loads. Focus on Largest Contentful Paint (LCP) as the metric that most closely correlates with user experience and conversions.
The biggest wins for most ecommerce sites: compress and properly size images (often saves 2-3 seconds alone), defer non-critical JavaScript, enable a CDN, implement lazy loading for below-the-fold images, and remove unused apps or plugins. On Shopify specifically, audit your installed apps — each one adds JavaScript that slows your store.
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