You can simply migrate Your wordpress site from one domain to another domain, using All-in-One WP Migration plugin. The another way to copy site from one domain to another is Duplicator – WordPress Migration Plugin. It is also authentic and user-friendly.
If you want to make your website faster then, here’s some tricks: Upgrading PHP version: If your current PHP version is less than 7, upgrade it to version 7+. If you don’t know how to do it, ask your hosting provider to do it for you. Use HTTPS/SSL: HTTPS has certain advantages regarding loading speed,…
Manually you can import the Demo Data on Dashboard > Your Theme > Import/Export. Here you choose your demo and install it. Follow this video step by step :
You can Set a anchor Id with your page builder, see the attachment Then set the Id in Appearance -> Menus section, see the attachment