I’m afraid that is not so simple.
That plugin uses the browser and the host computer to process and store search queries (hence the fast search). It is nice and handy, until a certain amount of data (number of products). Not to mention, most of our plugin features could not work in combination with that fast search (can’t show product descriptions, advanced title/content fields, can’t have any filters, can’t integrate with Elementor, can’t integrate with google analytics, can’t use priorities and priority groups, can’t search users, attachments and other post types etc..) For that, it is very expensive too in my opinion.
That product data is also printed directly to the page as JSON data to allow search in that data on the host computer. With a few products it is fine, but then requesting 50 000 product data to the host might not be the best idea (especially for mobile browsers).
It is very clever solution they have, but limited to a very simplistic search only – it is not comparable to the possibilities of this plugin. For a simplistic fast search, that product is superb – for more complex usage, this is probably a better choice.
You can however use the keyword suggestions feature – the taxonomy terms (tags, categories etc..) keyword suggestion have a decent similar match algorigthm – and can suggest actual taxonomy term names based on the mispelled keywords.