Every one-second delay in page load time reduces conversions by around 7 percent. For a store turning over $500,000 a year, a three-second load time instead of one second costs roughly $105,000 in lost revenue before you even consider the SEO penalty. Most business owners do not know their site is slow until their developer mentions it or a competitor overtakes them in Google. By then, the damage is already compounding.
TPR Media fixes load speed on WordPress, Shopify and Magento sites across Australia. See our Load Speed Optimisation service for scope and pricing, or read about our broader Security & Performance programme.
Google published its speed-to-conversion research more than a decade ago, and the numbers have only sharpened since. Mobile users abandon a page that takes longer than three seconds to load at a rate that makes most paid ad campaigns unprofitable. The mechanic is simple: a visitor arrives, the page is still loading, they press back. Your bounce rate climbs, your session duration drops, and Google's algorithm interprets both as signals that your page is not useful. The result is lower organic rankings, which means fewer visitors, which means fewer sales. The loop is self-reinforcing and accelerates over time.
Run your site through Google PageSpeed Insights right now. If any Core Web Vitals are amber or red, you are leaving money on the table every single day.
Core Web Vitals are the three specific metrics Google uses to assess real-world page experience. They are not about raw speed in isolation, they measure how a page feels to a real visitor.
| Metric | What it measures | Good threshold | Common cause of failure |
|---|---|---|---|
| Largest Contentful Paint (LCP) | How long until the main content is visible | Under 2.5 seconds | Unoptimised hero images, slow server response, render-blocking CSS |
| Interaction to Next Paint (INP) | Responsiveness to user input across the full visit | Under 200ms | Heavy JavaScript, third-party scripts, bloated plugins |
| Cumulative Layout Shift (CLS) | How much the page jumps as it loads | Under 0.1 | Images without dimensions, late-loading ads, web fonts without fallbacks |
All three metrics must be in the green on both desktop and mobile for your site to pass Core Web Vitals. Most sites fail on mobile LCP and INP simultaneously.
The number one cause of slow websites in 2026 is still images. Specifically: images uploaded at the wrong size, in the wrong format, without compression, and without lazy loading. A business owner photographs their product on a modern smartphone and uploads the 8-megabyte JPG directly to the media library. That single image can increase page weight by more than the rest of the site combined. Multiply it by ten products on a category page and you have a page that weighs 80 megabytes on a mobile connection that delivers two to five megabytes per second.
A properly optimised product image should weigh between 20 and 80 kilobytes for standard display sizes. If yours weigh more than 200KB each, the fix alone will transform your load time.
WordPress powers around 43 percent of the web and has a well-earned reputation for getting slow fast. The irony is that the core WordPress installation is not the problem. A clean WordPress install on decent hosting loads quickly. The speed degrades through three predictable vectors: plugin bloat, theme bloat, and shared hosting.
Audit your plugins ruthlessly. If a plugin adds functionality you could achieve with three lines of code, replace it. If it is a plugin you installed once and forgot about, deactivate and delete it.
Shopify gets a reputation for being fast out of the box, and a clean Shopify store on a well-built theme genuinely is fast. The problem is that most Shopify stores are not clean. The app ecosystem is the culprit. Each Shopify app you install typically injects its own JavaScript and CSS into every page of your storefront, regardless of whether that page needs the app's functionality. Install ten apps, a loyalty programme, a reviews widget, a upsell tool, a subscription manager, a chatbot, a size guide, a recently viewed section, a countdown timer, a currency switcher and a back-in-stock notifier, and you have added ten separate external JavaScript requests to every page. Each one takes time to resolve, and many of them block the rendering of your store while they do so.
Use Shopify's built-in Theme Inspector or a third-party tool like Shopify Analyzer to see exactly which apps and scripts are adding load to your store. The results are usually sobering.
Magento is the most powerful of the three platforms discussed here and has the most demanding server requirements. A Magento store that feels slow is almost always running on a server that was not sized for it, or has not been tuned for it. Raw server capacity matters more on Magento than on WordPress or Shopify because Magento generates pages through a complex PHP process that touches dozens of database tables per request. The default configuration is not production-ready.
If your Magento Time to First Byte (TTFB) is over 800 milliseconds, the server configuration is almost certainly the first thing to fix before any front-end optimisation makes a meaningful difference.
Each platform has different speed characteristics and different failure modes. Understanding where each platform sits helps set realistic expectations for what a speed optimisation project can achieve.
| Platform | Out-of-box speed potential | Most common speed killer | Hosting requirement | Typical fix complexity |
|---|---|---|---|---|
| WordPress | High on a clean install | Plugin and theme bloat | Managed WordPress hosting (e.g. Kinsta, WP Engine) or a tuned VPS | Low to moderate, plugin audit, image optimisation, caching plugin |
| WooCommerce | Moderate, DB-heavy by nature | Shared hosting, unoptimised product images, too many order-related queries | Dedicated hosting with Redis and object caching configured | Moderate to high, server tuning required alongside front-end work |
| Shopify | High on a clean theme and app set | App script injection on every page | Shopify-managed (no server access needed) | Low to moderate, app audit and theme code review |
| Magento 2 | High when properly tuned | Misconfigured server, missing full-page cache, slow third-party modules | Cloud or dedicated server with Redis, Elasticsearch and OPcache | High, server tuning is prerequisite, then front-end work |
Shared hosting plans priced at $5 to $15 a month are fine for a personal blog receiving 200 visitors a month. They are not fine for a business website or an ecommerce store. The economics of shared hosting mean your site shares a server with hundreds or thousands of other sites. When one of those sites receives a traffic spike, gets hacked, or runs a resource-intensive process, every other site on that server slows down. You have no control over this. You cannot mitigate it. The only fix is to move.
If your host charges less than $30 a month for a business website or ecommerce store, you are almost certainly on shared hosting. Request your TTFB from tools like WebPageTest. If it exceeds 600ms, the hosting is the problem.
When TPR Media takes on a load speed project, we start with measurement, not assumptions. Every project begins with a full Lighthouse and Core Web Vitals audit across mobile and desktop, a server response time baseline and an analysis of the waterfall chart, the sequential list of every file your site loads and how long each one takes. From that audit, we build a prioritised fix list ranked by the impact each change will have on your score and your real-world user experience.
TPR Media's own website consistently scores 95 or above on Google Lighthouse for performance on mobile, the most demanding environment. We apply the same standards to every client site we touch.
The cost of a slow site is invisible on a day-to-day basis, which is why most businesses tolerate it far longer than they should. The revenue is not visibly lost, it simply never arrives. Visitors leave before converting, paid ad spend generates clicks that bounce, and Google quietly adjusts where your site sits in results over months. By the time the impact is obvious, months of ranking erosion and conversion loss have already occurred. A speed fix that costs $900 to $2,500 typically pays for itself within the first month for any site with meaningful traffic.
A professional load speed audit and fix project starts from $900 at TPR Media. The scope depends on platform complexity, hosting environment and the number of issues found. WordPress stores with many plugins typically need more work than a clean Shopify build.
Most one-off speed projects are complete within five to ten business days. Emergency fixes for critical Core Web Vitals failures can turn around faster. Ongoing tuning retainers run month to month.
Yes. Google uses Core Web Vitals as a ranking signal. Improving Largest Contentful Paint, Cumulative Layout Shift and Interaction to Next Paint can lift your position, especially in competitive categories where technical quality separates similar-authority sites.
Yes. TPR Media audits and fixes WordPress, Shopify and Magento sites regardless of who built them. We start with a full Lighthouse and Web Vitals audit before touching anything.
TPR Media operates from Level 34, 1 Eagle Street, Brisbane City QLD 4000, serving clients across Brisbane and Australia-wide.
Site speed optimisation improves Google Core Web Vitals scores (LCP, INP, CLS), directly affects organic search rankings and reduces the conversion drop caused by slow load times. TPR Media fixes load speed on WordPress, Shopify and Magento stores across Australia, with projects starting from $900. Common interventions include image compression and WebP conversion, script deferral, plugin audits, CDN configuration and server environment tuning. Shared hosting is a frequent root cause on WordPress and WooCommerce stores and requires migration to managed hosting before front-end fixes have meaningful impact.