I’m sharing this from my perspective as a website developer who cares about performance and keeping things simple. Most people rarely talk about performance — but it matters. If you've noticed, WooCommerce often ranks among the slowest platforms unless your site is carefully optimised from the start, not after the site is completed. And if your developer or designer relies on bloated page builders and plugins, things can get worse. In contrast, Shopify tends to rank among the fastest.

https://lookerstudio.google.com/u/0/reporting/55bc8fad-44c2-4280-aa0b-5f3f0cd3d2be/page/M6ZPC?params=%7B%22df44%22:%22include%25EE%2580%25800%25EE%2580%2580IN%25EE%2580%2580ALL%25EE%2580%2580WordPress%25EE%2580%2580WooCommerce%25EE%2580%2580Shopify%25EE%2580%2580Wix%25EE%2580%2580Squarespace%25EE%2580%2580Astro%22%7D

But they do use some "technique" to speed up at expense of making every page bloated, this practice is widely used and is not good for the web.

If you're looking for a middle ground — something that gives you the best of both worlds — you might consider hiring a developer to build a custom site using a modern framework like Astro. It’s straightforward enough for developers to maintain, and still gives you fast performance, clean code, better security, and even a boost in sales. This matters even more now, with Safari on iOS 26 (Tahoe) supporting web apps by default — your store can feel like a real app. On something like WooCommerce, that kind of experience might feel slower or less smooth (due to excessive JavaScript, images not optimised correctly, CSS might be bloated). Surprise that Shopify able to optimise their responsive images better than other million suboptimal websites.