In the Main Super Speedy Search settings, you decide how your chosen post type gets searched for. We recommend enabling both the Search in Content and Search in Excerpt, along with using a fulltext index.
Default Post Type
Take your pick for which results your site should display after completing a search. In this case, I want to display products for a store.
Override search forms by selecting the first checkbox. If Super Speedy Search doesn’t override the default search form, select the second checkbox. If neither of these work, your theme may not be allowing it. It’s possible you have to override/disable manually in the theme settings.