Variant Option Product Options runs asynchronous code that waits for dependencies and checks for things like add to cart or checkout buttons. That is why the script evaluation time is so high in page speed tests. This doesn’t block other scripts from running or slow down your pages.
Our app already is designed to run as fast and efficiently as possible.
We use Shopify’s servers to serve our files and cache the files to run as fast as possible.
We have also been awarded the Built for Shopiy Award. Shopify awards this to apps that meet their highest quality bar for safety, performance, and usefulness. Click the article below for more information.
https://www.shopify.com/blog/unleash-the-power-of-your-business-with-built-for-shopify-apps