Is PageFly Slowing Down Your Shopify Store? Here's the Fix

PageFly is one of the most popular page builders for Shopify, letting you create custom landing pages, product pages, and sections without coding. But that flexibility comes at a cost: PageFly typically adds 300ms or more to page load times.

This makes PageFly one of the heaviest apps we detect in Shopify stores. Here's what you need to know about its performance impact and how to minimize it.

Why PageFly Has a Large Performance Impact

Page builders like PageFly face an inherent challenge: they need to provide drag-and-drop flexibility while rendering content that Shopify's Liquid templating would normally handle.

1. JavaScript-Heavy Rendering

PageFly uses JavaScript to render custom sections and elements. Unlike native Liquid sections that render server-side, PageFly elements require client-side JavaScript to display.

2. Additional CSS Frameworks

PageFly includes its own CSS framework to enable its design options—fonts, colors, layouts, animations. This adds to the overall payload.

3. Third-Party Library Dependencies

To provide features like sliders, tabs, accordions, and animations, PageFly loads additional JavaScript libraries.

4. Every PageFly Page Loads PageFly

Even if only one page uses PageFly, the PageFly script often loads site-wide to check for PageFly content. Some stores have PageFly active on every page of their site.

The Mobile Problem

PageFly's 300ms impact is measured under ideal conditions. On mobile devices with slower processors and connections:

300ms becomes 500-800ms
CPU throttling makes JavaScript execution slower
Mobile networks add latency to asset loading

Since over 70% of Shopify traffic is mobile, this significantly impacts your real-world performance.

How to Check PageFly's Impact

Free Analyzer

Our Shopify speed analyzer detects PageFly and shows its impact alongside other apps. You'll see exactly how much PageFly contributes to your Total Blocking Time.

Lighthouse Comparison Test

Run Lighthouse on a PageFly page
Run Lighthouse on a non-PageFly page
Compare the Performance scores

If there's a 10+ point difference, PageFly is significantly affecting those pages.

Chrome DevTools Analysis

Open a PageFly page
Press F12 → Network tab
Filter for "pagefly"
Look at total file sizes and load times

You'll often see several JavaScript files totaling 200KB+ loading before your content renders.

How to Minimize PageFly's Impact

Option 1: Limit PageFly to Essential Pages

The most effective optimization is using PageFly only where you truly need it:

Keep PageFly for:

Landing pages for campaigns
Custom product pages for hero products
One-time promotional pages

Replace with native Liquid for:

Permanent pages (About, Contact, FAQ)
Collection pages
Regular product pages
Homepage (if possible)

Every page you migrate from PageFly to native Liquid removes 300ms of load time.

Option 2: Simplify PageFly Designs

PageFly pages with complex animations, multiple carousels, and dynamic elements are heavier. For each PageFly page:

Remove unused sections
Replace animated elements with static equivalents
Limit sliders to 3-5 slides maximum
Use system fonts instead of custom fonts
Avoid multiple accordions or tabs on one page

Option 3: Check PageFly's Settings

PageFly has some performance-related settings:

Go to PageFly app settings
Look for lazy loading options
Enable any "performance" or "optimization" toggles
Disable features you're not using

Option 4: Preload Critical PageFly Resources

If you must keep PageFly, preload its essential scripts:

<link rel="preload" href="YOUR_PAGEFLY_SCRIPT_URL" as="script">

This tells the browser to fetch PageFly early, reducing perceived load time.

When to Consider Alternatives

PageFly's performance impact is significant enough that switching may be worthwhile, especially if:

Your store prioritizes speed (competitive niche, mobile-heavy audience)
You only use PageFly for simple layouts
Your conversion rate is suffering due to slow mobile speeds

PageFly Alternatives

Shopify's Online Store 2.0 Sections

Modern Shopify themes include customizable sections that cover 80% of what page builders do—without the performance cost:

Custom section layouts
Reusable blocks
Drag-and-drop in theme editor
Zero JavaScript overhead for static content

GemPages

At 280ms typical impact, GemPages is slightly lighter than PageFly while offering similar features. Not a dramatic improvement, but measurable.

Shogun

Shogun is actually heavier (320ms+), so avoid it if performance is your concern.

Native Liquid Development

For permanent pages you want to keep, hiring a developer to convert PageFly pages to native Liquid is often worth the investment. A one-time development cost eliminates the ongoing performance tax.

Cost-Benefit Analysis

Consider: If PageFly costs you 300ms on every page load, and that delay reduces conversions by 2%, is the page builder convenience worth it?

For stores doing $100,000/month, that's $2,000/month in lost revenue. A few thousand dollars to convert key pages to native Liquid pays for itself in weeks.

Migration Strategy

If you decide to move away from PageFly:

Phase 1: Identify High-Traffic PageFly Pages

Check your analytics to find which PageFly pages get the most traffic. Prioritize these for migration.

Phase 2: Recreate in Native Liquid

Work with a developer or use Shopify's section capabilities to recreate your most important pages without PageFly.

Phase 3: A/B Test Performance

Run speed tests before and after migration. Document the improvement for each page.

Phase 4: Remove PageFly

Once all critical pages are migrated, disable PageFly to eliminate its site-wide overhead.

The Trade-Off Reality

PageFly exists because building custom Shopify pages without it requires development skills. There's a real trade-off:

With PageFly: Easy page building, 300ms+ performance cost
Without PageFly: Developer dependency, maximum performance

For some stores—especially those just starting out—PageFly's convenience outweighs its performance impact. For stores at scale where conversions are worth optimizing, the math often favors native development.

Take Action

Whether you optimize PageFly or migrate away from it, start by understanding the real impact on your store.

Check if PageFly is slowing your store →

Get a complete analysis showing PageFly's impact on your specific store, how it compares to other apps, and which pages are most affected.