# Best Magento 2 Checkout Extensions for Speed (2026) *Published: 2026-09-29 | Author: Jason Ratzlaff* Checkout is the slowest page most Magento stores serve, and it is the one page where every second is directly tied to revenue. It is never cached, it recalculates the cart on almost every step, and on the default Luma theme it is built from dozens of KnockoutJS components that load one RequireJS module at a time. I attacked it from two directions: **Fast Checkout**, built into FastMagento, which speeds up the backend cart and totals work, and **FastMagento Checkout**, a separate module that rebuilds the checkout page itself. Here is how both compare with the other ways to speed up Magento checkout. **~10×**faster 7-item cart render*~4.0 s → ~0.4 s* **~0.4 s**checkout render, flat as the cart grows*native adds ~230 ms per configurable line* **−76%**checkout totals SQL*1,250 → 295* FastMagento README benchmarks. ![Online checkout screen with payment details and shopping cart](https://images.unsplash.com/photo-1757301714935-c8127a21abc6?ixid=M3w4ODMzNjJ8MHwxfGFsbHx8fHx8fHx8fDE3OTA2NTc1ODF8&ixlib=rb-4.1.0&w=1520&q=80&fm=jpg&fit=crop&ar=16:9)Photo by [Ze Vieira](https://unsplash.com/@zfvl?utm_source=parkk_blog&utm_medium=referral) on [Unsplash](https://unsplash.com/?utm_source=parkk_blog&utm_medium=referral)Why Is Magento Checkout So Slow? -------------------------------- - **Backend:** every quote reload and totals collection reloads products, prices, catalog rules, and stock. Each configurable line item multiplies the work. - **Frontend:** the native checkout ships a large `window.checkoutConfig` payload inside the HTML and builds the page from many KnockoutJS UI components. That hurts time-to-interactive, especially on mobile. Most checkout products fix one side or the other. Very few publish numbers for the backend side at all. Where native Magento’s ~217 queries go when it builds the cart’s line items EAV 119Stock 7127 - **119** EAV attribute loads - **71** MSI stock checks - **27** downloadable-product lookups Magento 2 One Step Checkout vs Hyvä Checkout vs Bolt ---------------------------------------------------- OptionWhat it changesCostNative Magento checkoutBaseline: multi-step, KnockoutJSFreeOne-step checkout extensions (Amasty, Aheadworks, Swissup Firecheckout, OneStepCheckout)Fewer steps and a better layout; most still run on the Luma checkout stackRoughly $79–$319+Hyvä CheckoutA rebuilt, lightweight frontend on Magewire; vendor claims up to 13x faster mobile load€1,000 one-time plus €250 per yearBoltHosted, network-based one-click checkoutPer-transaction; checkout runs on a third partyAdobe checkout drop-in (Edge Delivery Services)Checkout component for Adobe’s new storefrontRequires Adobe Commerce plus an Edge Delivery Services storefrontSources: [Amasty](https://amasty.com/one-step-checkout-for-magento-2.html), [Aheadworks](https://aheadworks.com/one-step-checkout-for-magento-2), [Swissup](https://swissuplabs.com/one-step-checkout-extension-for-magento-2.html), [Hyvä Checkout](https://www.hyva.io/hyva-checkout.html) (vendor figures), [Adobe Commerce Storefront](https://experienceleague.adobe.com/developer/commerce/storefront/). Bolt’s published conversion claims are vendor marketing and have been disputed; treat them accordingly. One-step extensions mainly improve the *experience* — fewer clicks — rather than the speed of the underlying requests. Hyvä Checkout is a genuine frontend rewrite and a strong option, especially on a Hyvä theme. Hosted checkouts trade speed for handing your checkout to someone else. Speed Up the Magento Cart Backend with Fast Checkout ---------------------------------------------------- Fast Checkout is part of FastMagento and on by default. It serves the product, price, catalog-rule, and stock reads that checkout needs from OpenSearch instead of reloading them from EAV on every totals collection. These are my published figures from the [FastMagento README](https://github.com/parkktech/FastMagento), warm renders on my test storefront: Cart and checkout render time by cart size Warm render on the reference storefront, native checkout vs FastMagento Fast Checkout. Native checkoutFast Checkout 1 simple product0.93 s**0.41 s** 1 configurable product1.08 s**0.42 s** 7-item cart4.00 s**0.40 s** 10 configurable products3.34 s**0.41 s** The 7-item figures are approximate (~4.0 s and ~0.4 s) in the source. Source: FastMagento README. The important pattern is the last column: checkout stays near 0.4 seconds as the cart grows, where native checkout grows with every configurable line. On a separate 513,000-product stress test measured cold, checkout totals went from 1,510 ms to 1,110 ms and from 1,250 SQL queries to 295. Because Fast Checkout changes how stock is read, I recommend placing a real test order on staging before going live. FastMagento Checkout: An Instant-Loading Magento Checkout Page -------------------------------------------------------------- [FastMagento Checkout](https://github.com/parkktech/FastMagentoCheckout) is a separate open-source module that splits checkout into independent “islands”: - The contact and shipping form is static HTML driven by plain JavaScript, so it is usable immediately. - The payment step is Magento’s own Knockout payment component, started on its own, so your existing payment methods keep working. - The heavy checkout configuration loads after the page from its own endpoint, which keeps the page shell cacheable. - If that configuration cannot load after retries, the shopper is sent to the standard checkout automatically, and adding `?fastcheckout=0` forces the standard checkout for testing. It also adds saved addresses in the browser, Google Places address autocomplete, inline validation, product thumbnails, linking guest orders to matching accounts, and support for physical, virtual, and mixed carts — with no database schema changes. It requires Magento 2.4.6+ and PHP 8.1+; on Hyvä themes it needs Hyvä’s Luma-checkout fallback module. I have tested it alongside FastMagento, which is the combination I recommend. **No standalone numbers for the frontend module yet**I have not yet published standalone timing benchmarks for the FastMagento Checkout module. When I do, they will be in the repository with the test conditions stated. The checkout figures above are from Fast Checkout, the backend feature built into FastMagento. Native Magento checkout Luma, KnockoutJS First paintWaits for checkoutConfig Typing the emailAfter the spinner Payment methodsStock Page shellNot cacheable Rollbackn/a FastMagento Checkout islands architecture First paintStatic form, immediately Typing the emailRight away Payment methodsStock, unchanged Page shellCacheable RollbackAdmin toggle or URL switch Which Magento Checkout Extension Should You Choose? --------------------------------------------------- - Checkout slow because of big carts, configurables, or heavy pricing rules? That is a backend problem — Fast Checkout targets it directly. - Checkout slow to become usable on mobile? That is a frontend problem — FastMagento Checkout or Hyvä Checkout. - Both? Use both layers. They were designed together. Frequently Asked Questions -------------------------- What is the difference between Fast Checkout and FastMagento Checkout?Fast Checkout is a feature built into FastMagento that speeds up the backend cart and totals calculations by reading product, price, and stock data from OpenSearch. FastMagento Checkout is a separate module that rebuilds the checkout page frontend as fast-loading independent sections. Will FastMagento Checkout work with my payment methods?It is designed to. The payment step uses Magento’s own payment component, so standard payment integrations continue to work. Test your specific payment methods on staging before going live. Is FastMagento Checkout an alternative to Hyvä Checkout?Both rebuild the checkout frontend for speed. Hyvä Checkout is a commercial product built on Magewire; FastMagento Checkout is open source, keeps Magento’s native payment component, and falls back to the standard checkout automatically if anything fails. How much faster is checkout with FastMagento?In published warm-render tests, a 10-configurable-product checkout went from 3.34 seconds to 0.41 seconds with Fast Checkout. Results depend on catalog, extensions, and hardware. Have a Magento store that is too slow? -------------------------------------- Bring me the store three agencies could not make fast. The first conversation is free, and it is a real one. I will tell you honestly where your time is going. [Start the conversation](https://www.parkktech.com/contact/) --- **Parkk Technology** — Custom Software Development, AI Integration, and Equity Partnerships - Custom Software Development: We build the software your business actually needs — scoped, shipped, supported. - AI Integration for Existing Businesses: Add AI capabilities to what you already have — without rebuilding everything. - Equity Partnership: Considered case by case for validated problems. No fixed package. Contact: https://www.parkktech.com/contact | Author: Jason Ratzlaff, founder of Parkk Technology