7%
Conversion drop per second of delay
Checkout above 3 seconds loses paying customers mid-purchase. WooCommerce stores feel this on mobile first.
Source: Akamai / Google
🛒 Premium WooCommerce service
WooCommerce Speed Optimization — Checkout Under 1.5s Guaranteed
Built for serious store owners. We optimize cart, checkout, product pages, and payment scripts independently — without breaking Stripe, PayPal, or your conversion funnel.
- Checkout under 1.5s on mobile
- Cart fragments & AJAX tuned — no more laggy add-to-cart
- Stripe, PayPal & WooPayments JS deferred independently
- Product, archive & variable product pages optimized
Free audit · No commitment · Results guaranteed
Real WooCommerce client Revenue store
Before
0
After PageSpeed99
0
68% cart abandon → Checkout 1.3s +22% revenue
Why it matters
Why WooCommerce Speed Directly Impacts Your Revenue
Every second on checkout costs conversions. Professional store owners don't guess — they measure cart abandonment, checkout drop-off, and mobile load time as revenue metrics.
70%
Of cart abandonment is speed-related
Slow cart fragments, laggy add-to-cart, and heavy payment JS are the top causes — not price or product.
Source: Baymard Institute
22%
Average revenue lift after checkout fix
Our WooCommerce clients typically see measurable revenue recovery within 30 days of checkout optimization.
Source: PageSpeed99 client data
Common problems
Signs Your WooCommerce Store Needs Speed Optimization
These are the patterns we diagnose on every store audit — before a single line of code is changed.
Checkout takes 5+ seconds on mobile
Stripe, PayPal, and WooCommerce scripts load synchronously — blocking the payment form from rendering.
Laggy add-to-cart & cart updates
Cart fragments AJAX fires on every page load — slow server response makes the mini-cart feel broken.
Product pages load 50+ scripts
Variable product swatches, gallery zoom, reviews, and upsell plugins each add render-blocking JS.
High cart abandonment rate
Analytics show drop-off at cart and checkout — speed is the silent revenue killer most store owners miss.
Shop archive pages timeout on mobile
Category and filter pages run heavy WooCommerce queries — unoptimized product loops kill mobile performance.
WP Rocket didn't fix checkout
Caching plugins optimize the homepage — but WooCommerce checkout, cart, and account pages are excluded by design.
How we fix it
How We Optimize Your WooCommerce Store — Page by Page
Cart, checkout, product, and archive pages each have different bottlenecks. We fix them surgically — not with a generic cache plugin.
Checkout Optimization
Stripe, PayPal, WooPayments & Square JS deferred independently — checkout under 1.5s mobile guaranteed.
Cart & Fragments Tuning
Cart fragments AJAX optimized, mini-cart cached, add-to-cart response under 500ms.
Product Page Optimization
Gallery, swatches, reviews & upsell scripts tuned — variable products load fast on mobile.
Shop & Archive Tuning
Product loops, filters & category pages — WooCommerce queries optimized for catalog speed.
WooCommerce Script Audit
wc-cart, wc-checkout, wc-add-to-cart — each script load profiled and deferred where safe.
HPOS & Database Tuning
High-Performance Order Storage, session handling & order query optimization for scale.
End-to-End Payment Testing
Every optimization tested on staging with real payment gateway flows — zero broken checkouts.
Before/After Store Report
Linked PSI results for checkout, cart & product pages — auditable proof for your team.
The real cost
How Much Is Your Slow Store Losing Every Month?
Slow checkout isn't a technical inconvenience — it's silent revenue leaving your store every day. Here's what the data shows for WooCommerce stores.
7%
Conversion drop per second
Every extra second on checkout costs paying customers — compounding with each delay.
70%
Cart abandonment from speed
Most shoppers abandon at cart or checkout when pages feel laggy — not because of price.
$2,100
Avg. monthly loss
Typical $10k/mo store with 3–5s checkout delay — based on industry conversion data.
22%
Revenue recovery after fix
Average lift our WooCommerce clients see within 30 days of checkout optimization.
Monthly store revenue Slow checkout (~5s) Est. monthly loss Est. yearly loss
$10,000/mo ~5s checkout −$2,100/mo −$25,200/yr
$25,000/mo ~5s checkout −$5,250/mo −$63,000/yr
$50,000/mo ~5s checkout −$10,500/mo −$126,000/yr
$100,000/mo ~5s checkout −$21,000/mo −$252,000/yr
Based on 7% conversion drop per second above 2s target (Akamai / Google). Assumes 3-second checkout delay. Get your exact numbers in a free store audit →
Why PageSpeed99
The WooCommerce Performance Team Serious Stores Trust
Not a general WordPress agency. Not a plugin installer. A dedicated performance team built for revenue stores — dedicated WooCommerce performance team.
Checkout under 1.5s — guaranteed
on mobile. Contractually backed — no fix, no fee.
Stripe & PayPal — tested, never broken
Each payment gateway deferred independently. Full checkout flow tested on staging first.
WooCommerce-native — not generic WP advice
Cart fragments, wc-checkout.js, HPOS, variable products — we know the stack inside out.
Linked before/after store report
PSI results for checkout, cart & product pages — auditable proof for your team.
48–72 hour delivery
Full store optimization in 2–3 business days. Staging verified before live deploy.
10+ Years Experience
10+ years building WooCommerce stores for professional clients. Not a freelancer — a company.
Before & after
Slow Store vs Optimized Store
This is what changes when checkout, cart, and catalog pages are properly tuned — not just the homepage cached.
Store metric Slow store Optimized store
Mobile checkout load time 6–12 seconds Under 1.5s
Cart AJAX / add-to-cart 1.5–3 seconds Under 0.5s
Product page (mobile PSI) 20–45 score 90+ score
Cart abandonment rate 68–78% 42–55%
Stripe / PayPal JS loading Render-blocking Deferred & tested
WooCommerce scripts on checkout 50+ blocking files Surgical deferral
Shop / category archive speed Slow queries, timeouts Optimized loops
Payment flow testing Hope it works E2E on staging
Monthly traffic lost (organic + paid) −800 to −8,000 visits Recovered
Monthly revenue impact −$2,100 to −$21,000 +15–22% recovery
Our process
How We Optimize Your WooCommerce Store in 48–72 Hours
Store audit, staging clone, surgical fixes, payment testing — then live deploy with confidence.
01
Store Audit
We profile checkout, cart, product & archive pages — cart fragments, payment JS, and WooCommerce queries mapped — free in 24h.
02
Staging Clone
Full store clone with payment gateway test mode. Live revenue untouched while we optimize every WooCommerce page type.
03
Surgical Fixes
Checkout JS, cart fragments, product scripts & catalog queries — each optimized independently without breaking the other.
04
Payment Test & Deploy
End-to-end checkout tested on staging. Live deploy with before/after PSI report and 30-day post-launch monitoring.
Tools & stack
WooCommerce Tools & Stack We Work With Daily
Payment gateways, checkout plugins, and store infrastructure — we optimize the full WooCommerce revenue stack.
Payment Gateways
Deferred independently — never broken
- ST Stripe
- PP PayPal
- WP WooPayments
- SQ Square
- BT Braintree
- AD Authorize.net
Checkout & Cart
WooCommerce page optimization
- FC Fluid Checkout
- FK FunnelKit
- CF CartFlows
- WC wc-cart-fragments
- CO wc-checkout.js
- AT wc-add-to-cart
WooCommerce Extensions
Premium plugin performance
- SU Subscriptions
- BK Bookings
- MB Memberships
- B2 B2B / Wholesale
- VP Variable Products
- AC Advanced Coupons
Store Infrastructure
Scale-ready backend tuning
- HP HPOS
- RD Redis sessions
- WR WP Rocket
- CF Cloudflare CDN
- QM Query Monitor
- OC Object Cache Pro
Custom WooCommerce builds — we optimize what your store actually runs
Whether your checkout is built with Fluid Checkout, a custom theme, or a bespoke plugin stack — we profile what loads on cart, checkout, and product pages and fix it surgically. Klaviyo, Meta Pixel, GA4, custom upsell logic, proprietary inventory scripts — if it affects your store speed or checkout conversion, we can optimize it without breaking revenue.
Expertise
WooCommerce Platforms & Integrations We Specialize In
50+ revenue stores optimized — from DTC brands to high-SKU catalogs and subscription businesses.
Payment Gateways
- StripeMost common
- PayPal Checkout
- WooPayments
- Square & Braintree
- Multi-gateway setups
WooCommerce Extensions
- SubscriptionsRecurring
- Bookings & Appointments
- Memberships & LMS
- B2B / Wholesale
- Product Bundles
Checkout & Funnel Plugins
- Fluid CheckoutOne-page
- FunnelKit / Funnel Builder
- CartFlows
- CheckoutWC
- Custom checkout themes
Marketing & Analytics
- Klaviyo / Mailchimp
- Meta Pixel & CAPI
- Google Analytics 4
- Google Ads conversion
- Hotjar & session replay
Complex store setup? Send us your checkout URL — we've optimized every WooCommerce configuration in 10+ years.
Pricing
Fixed Price. Guaranteed Results.
One transparent price — checkout under 1.5s on mobile, or you don't pay.
What's included vs. DIY
DIY + WP RocketPageSpeed99
Checkout under 1.5s mobileRarelyGuaranteed
Payment gateway optimizationBreaks checkoutE2E tested
Cart fragments tuningNot addressedSurgical
Product & archive pagesHomepage onlyFull catalog
Time to resultsWeeks of trial48–72 hours
Client results
What Store Owners Say After We Optimize Their WooCommerce
★★★★★Checkout 8.2s → 1.3s · +22% revenue
"Our WooCommerce store was taking 14 seconds on mobile checkout. PageSpeed99 fixed it in 48 hours and our revenue went up 22% the following month. The PSI report was verifiable in Google's own tool."
★★★★★Stripe deferred · Cart AJAX 0.4s
"I'd already tried WP Rocket. PageSpeed99 deferred Stripe JS independently, optimized WooCommerce cart fragments separately, and fixed a product gallery LCP issue I didn't know existed. Checkout works perfectly."
★★★★★2,400 SKU catalog · Checkout 1.5s
"We run a high-SKU WooCommerce store for a client. Category pages were timing out on mobile. PageSpeed99 optimized product queries and checkout without breaking variable product swatches or PayPal."
FAQ
WooCommerce Speed — Common Questions
No. Every payment gateway is deferred and tested independently on staging with test-mode transactions before live deploy. Across all WooCommerce projects, we've never broken a checkout flow.
WP Rocket caches your homepage — but WooCommerce cart, checkout, and account pages are excluded from cache by design. Checkout slowness comes from payment JS, cart fragments, and WooCommerce queries — none of which a cache plugin addresses.
Yes — the full store. Checkout, cart, single product, variable products, category archives, and filter pages. Each page type has different bottlenecks and gets optimized independently.
We regularly optimize subscription, membership, and booking stores. Recurring payment flows, account pages, and renewal checkouts are tested end-to-end on staging before deployment.
We keep working at zero extra cost until checkout passes our guarantee — contractually. No fix, no fee.
WordPress Speed optimizes general site performance. WooCommerce Speed ($549) is a premium service focused entirely on your store — checkout, cart fragments, payment gateways, product catalog, and HPOS. Built for revenue stores, not blogs.
Yes — Fluid Checkout, FunnelKit, CartFlows, CheckoutWC, and custom checkout themes are all within scope. We optimize the checkout plugin's script load without breaking its UX.
Most stores complete in 48–72 hours. Complex multi-gateway or high-SKU stores may take up to 5 business days. You get an exact timeline in your free store audit before you commit.
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Start Your WooCommerce Optimization
Free store audit in 24 hours. We'll profile checkout, cart fragments, and payment JS — with a fixed-price quote before you commit.
Response within 24 hours
Mon–Sat, including free store audit delivery
Checkout under 1.5s guaranteed
— payment flows tested
hello@pagespeed99.com
Direct line to our performance team