WP-Optimize vs Scalability Pro
Want faster results? Try Scalability Pro on your store.
Get Scalability Pro →Comparing WP-Optimize with Scalability Pro? This page breaks down the key differences and similarities so you can find the best fit for your WordPress or WooCommerce store.
Overview of WP-Optimize
WP-Optimize is WordPress's most popular all-in-one cleanup and performance plugin. It cleans your database, compresses images, and caches your site — all from a single plugin.
How Scalability Pro differs from WP-Optimize
All plugins from Super Speedy Plugins share a SQL-first architecture and an uncompromising focus on performance — and Scalability Pro is no different. Here is what sets it apart:
Your WooCommerce shop page went from over 180 seconds to 0.4 seconds – on 820,000 products. Scalability Pro is the performance plugin for WordPress and WooCommerce sites that have grown too big for their own good. It adds the right database indexes, rewrites your slow queries to use them, and switches off the features that quietly grind to a halt once you pass 5,000 products, orders or users.
- Makes WP_Query fast and keeps it fast as your catalogue grows
- Speeds up archives, wp-admin, imports, exports and XML sitemaps
- Typically around a 10x boost on large imports, with lower CPU while they run
- A toolbox of optimisations you toggle on and off, no code required
- Complements your cache – it fixes the queries caching cannot
Rated 4.82 out of 5 by 34 customers. 60-day money-back guarantee.
How to choose between WP-Optimize and Scalability Pro?
Choosing between WP-Optimize and Scalability Pro comes down to how seriously performance at scale matters to your business. Scalability Pro was built from the ground up with a SQL-first architecture, and every release is benchmarked against a one-million-product WooCommerce store before it ships — the kind of rigorous testing that surfaces the performance issues other plugins quietly ignore. A free trial is available so you can see the difference on your own staging environment before committing.
What do others say about Scalability Pro?
Super happy with Scalability Pro, the support, and the results – sped up my imports by multiples. I first came across Dave and his work speeding up large WordPress/WooCommerce sites by watching his Wordcamp presentation on scaling Woocommerce – before he had this official plugin. Having all of that expertise distilled into a plugin, it's pretty amazing and the results speak for themselves. A+++++
The plugin improved category loading and page display from over 15 seconds to 2 seconds instantly. Over 250,000 products on WooCommerce. The other pages are the same, this can be seen immediately, especially when there are more products on the page
Our current WP websites have been really laggy and despite switching to more powerful servers, we kept encountering bottlenecks until we found WPI. We are currently using Super Speedy Search + Scalability Pro and it has been phenomenal with the performance improvements! Across 2 of our websites on 1 server, we are looking at 90k MAU with 6k products total. Dave has also been a great help with any bugs during the setup process – really speedy response and he sure knows what he is doing!
Scalability Pro Knowledge Base
View full Knowledge Base →Articles about Scalability Pro
View all articles →- New SQL enhancement for Scalability Pro to fix WooCommerce long-running query in the product-hero block
- Speeding up WooCommerce 7 (wp-admin and imports)
- More speed boosts for wp-admin and imports with Scalability Pro upgrade
- Performance boost for WooCommerce onboarding code on large sites
- December Development Update
- More speed, more updates, and a bit of a roadmap for our plugins
- Beta downloads and historic plugin versions now in your account
- Upgrades to multiple Super Speedy Plugins plugins now in beta
- Bridge theme speed improvements included in latest Scalability Pro update
- Faster Woo Widgets beta
- Speed hacks for the Newspaper theme by tagDiv: Transform your site speed
- Making the WPNotif plugin faster
- Speeding up WP All Import imports using Scalability Pro
- Performance Optimisation for various XML Sitemap plugins
- Getting Rehub Working with Super Speedy Plugins
- Rehub Theme Performance and Scalability Review
- Foundthru demo site of Super Speedy Plugins plugins
- Scaling WooCommerce to 1 million products (my talk at WordCamp Brighton)
What's new in Scalability Pro?
6.23 (20th May 2026)
- Added a "Recheck Licenses" button above the licence table on the Super Speedy Settings page so customers have a clear way to refresh licence status after a renewal or upgrade without scrolling down to the licence-key field. The button is disabled until a licence key is entered/saved and re-enables as you type.
- The Recheck flow now also force-bypasses the auth-server's own 1-hour licence cache (via a `force=1` flag on the `wpiapi/check_product_key` call), so renewals/upgrades that completed less than an hour before a recheck no longer show as expired/exceeded. Normal admin page loads continue to use both caches as before — only an explicit Recheck click bypasses them. (Lives in the `super-speedy-settings` submodule, so the change propagates to every Super Speedy plugin.)
6.22 (13th May 2026)
- Security: added capability checks and nonces to every admin AJAX endpoint that was previously reachable by low-privilege or unauthenticated users (slow query log fetch, index create/drop/drop-all, symlink create/delete, wp-config rewrite, slow query log truncate, term recount, profiling results save, cache clears, settings export/import, CSV export, action scheduler maintenance, and the WP All Import diagnostic helper)
- Security: removed `wp_ajax_nopriv_*` registrations from the slow query log fetch and the post-count / author-count cache clear endpoints — these were admin-only operations that should never have been exposed to unauthenticated visitors
- Security: escaped every column rendered in the Slow Query Log admin table (`time`, `url`, `query`, `stacktrace`, `duration`) — prevents stored XSS via a poisoned slow-query log entry being executed when an admin views the tab
- Security: fixed the "Create symlink" button, which previously created a dangling `wp-content/db.php` (the source path the button used had never existed in the plugin) and would have fatal-ed the site on the next request; the slow-query drop-in (`db.php` + `profiling-queries.php`) has been moved into `tabs/slow-query-log/wp-content/` to match the path the button always expected, every readlink check across the tab now derives the path from `plugin_dir_path(__FILE__)` so it works regardless of the plugin's installed folder name, and the symlink source is validated with `is_file()`/`realpath()` before linking
- Refactored: the slow-query-log drop-in files now live under `tabs/slow-query-log/wp-content/` so the tab is self-contained ahead of the planned split of each tab into a separate add-on plugin
- Security: hardened `spro_search_terms` (product attribute search) — requires `edit_products` and null-checks the taxonomy so PHP 8 no longer fatals on an unknown taxonomy
Want faster results? Try Scalability Pro on your store.
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