App Speed Report · Updated March 2026
Does ReConvert Slow Down Your Shopify Store?
Speed impact analysis of ReConvert (Upsell & Cross-sell) — how much it affects your page load time, what scripts it loads, and how to mitigate the performance cost.
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ReConvert Speed Impact Summary
2
Scripts Loaded
120KB
Total Script Size
150-300ms
Avg. Load Time Impact
App Name
ReConvert
Category
Upsell & Cross-sell
Impact Level
Medium
How ReConvert Affects Your Store Speed
ReConvert focuses on post-purchase upsells and thank-you page optimization. It also offers in-cart upsells and product recommendation widgets on product pages.
When a visitor lands on your store, ReConvert loads 2 JavaScript files totaling approximately 120KB. These scripts need to be downloaded, parsed, and executed by the browser — all of which takes time and competes with your core page content for network bandwidth and CPU resources.
The measured impact is 150-300ms of additional page load time. To put that in perspective: Google research shows that each additional 100ms of load time reduces conversion rates by up to 7%. If ReConvert adds 150-300ms to your page load, that's a measurable impact on your bottom line.
ReConvert's medium impact means it's contributing noticeably to your load time but isn't the worst offender. Combined with other apps, however, the cumulative effect can be significant.
What These Scripts Do
ReConvert's scripts handle its core upsell & cross-sell functionality on your storefront. This typically includes:
- • Core functionality script — The main JavaScript bundle that powers ReConvert's features on your pages
- • Tracking/analytics script — Monitors user interactions and behavior for ReConvert's dashboard and reporting
The problem isn't that these scripts exist — it's that they often load synchronously and on every page, even pages where ReConvert's functionality isn't needed. A visitor browsing your blog doesn't need ReConvert's full upsell & cross-sell scripts loading and executing.
How to Reduce ReConvert's Speed Impact
You don't have to choose between ReConvert's functionality and a fast store. Here's how to minimize its performance impact while keeping the features you need:
Limit ReConvert widgets to thank-you and cart pages only — disable storefront-wide scripts if you only use post-purchase features
Disable product page upsell widgets if they're not converting — each adds script overhead to your most important pages
Use ReConvert's 'lazy' widget initialization for cart page upsells
Remove unused ReConvert widget types — each active widget type loads its template and logic
Monitor ReConvert's actual conversion rate — if upsells generate minimal revenue, the speed cost may not be justified
Consolidate upsell tools — don't run ReConvert alongside other upsell apps simultaneously
🔍 SEO impact: Reducing ReConvert's speed impact helps your store pass Core Web Vitals — Google's official ranking signal since 2021. Better speed = higher rankings = more organic traffic.
Quick Optimization Checklist for ReConvert
Complete these steps to minimize ReConvert's speed impact
The Bigger Picture: App Bloat on Shopify
ReConvert is just one app on your store. The average Shopify store has 15-25 apps installed, and each one adds its own JavaScript and CSS to your storefront. The cumulative effect is what really kills your speed score.
Think about it: if ReConvert adds 150-300ms and you have 10+ other apps each adding 100-400ms, your total third-party script overhead could be 2-5 seconds. That's the difference between a store that converts and one that loses visitors before the page even loads.
Manually optimizing each app's loading behavior is time-consuming and requires technical knowledge. You'd need to edit theme files, understand JavaScript loading patterns, and constantly monitor for regressions when apps update their scripts.
This is exactly the problem Thunder was built to solve. Thunder automatically scans every app on your store, measures each one's actual speed impact (including ReConvert), and optimizes how they all load — deferring non-essential scripts, reducing blocking time, and ensuring your critical page content loads first.
⚡ See How ReConvert Affects Your Store
Thunder scans your installed apps — including ReConvert — and shows you exactly how much each one impacts your speed. Then it fixes them automatically.
Install Thunder Free →Free plan available · Scans all your apps · No code changes required
What Merchants Say
★★★★★
"Our PageSpeed score went from 34 to 82 without removing a single app. Thunder handled everything automatically."
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★★★★★
"We were about to uninstall half our apps to fix speed. Thunder saved us the hassle — all apps running, score above 80."
Sarah K.
Health & Beauty
★★★★★
"Setup took 30 seconds. Our LCP dropped from 4.2s to 1.8s. Best $20/month we spend."
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Home & Garden
Frequently Asked Questions
Does ReConvert slow down Shopify stores?
ReConvert has a medium speed impact on Shopify stores, typically adding 150-300ms to page load time. It loads 2 scripts totaling approximately 120KB. While this isn't negligible, you can mitigate the impact by deferring its scripts, limiting which pages it loads on, and using a speed optimization app like Thunder to manage its loading behavior.
How much does ReConvert affect my PageSpeed score?
ReConvert typically reduces your PageSpeed Insights mobile score by 3-10 points depending on your store's baseline performance and other installed apps. The 120KB of JavaScript it loads contributes to longer Time to Interactive (TTI) and potentially affects Largest Contentful Paint (LCP) if scripts block rendering. The actual impact varies — stores with fewer apps will notice it more.
Should I uninstall ReConvert to improve speed?
Not necessarily. ReConvert provides valuable functionality (upsell & cross-sell) that likely benefits your store. Instead of uninstalling, optimize how it loads: defer non-critical scripts, limit it to pages where it's needed, and use Thunder to automatically manage its loading priority. Only uninstall if you're not actively using the app or if the speed cost outweighs the business value.
Can I use ReConvert and still have a fast Shopify store?
Yes. Many high-performing Shopify stores use ReConvert successfully. The key is optimization: don't load ReConvert's scripts on pages where they're not needed, compress your images to offset the script overhead, and use a tool like Thunder to defer ReConvert's JavaScript until after your critical content has loaded. A well-optimized store with ReConvert can still score 80+ on PageSpeed mobile.
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