This depends on many factors, and we can only answer this after seeing your website. As a WordPress Agency, we can import many systems like Shopify can be imported into a WordPress platform. But systems like Wix sadly cannot. So if you wish to improve the SEO of your website, and to add a blog and make your amazing website even better with WordPress, get in touch with us and we will see the best way to do it for you, within your budget. We also can migrate BigCommerce, Drupal, Tumbr and more.