No measurable impact. The PerfectMatch: AI Shopping Quiz widget is built to stay out of your page's way:
It loads in the background. The quiz files download asynchronously and run only after your page has finished loading, so they never block the page from appearing.
It's lightweight. The widget is small, with no heavy add-ons, and its files are served by Shopify's fast infrastructure — the same place your theme's own files come from.
The quiz itself only loads on demand. Your page shows just the trigger (a sticky button, banner, button, or announcement bar). The full quiz opens in a popup only when a shopper clicks it, and product details are fetched at that moment — not on page load.
In short: shoppers see your pages at full speed, and the quiz is ready the instant they want it.