Plugin decisions tell me a lot about how the site was put together. Each plugin consumes resources and slows down a site, particularly on weaker hosting. Plugins can also clog-up the database by caching a bunch of data or storing oversized settings…
Storefront* is the official open-source theme for WooCommerce powered stores. There are significant benefits to implementing the official theme and making your site’s design work with it. Storefront can improve both form and function with a little patience in working it to suit your design needs.
The WordPress.com Business Edition hosting service by Automattic could be the best option for hosting your WordPress sites.