Here is an independent speed test which finds Ghost (more specifically: Node) to be up to 1900% faster than WP - https://blog.appdynamics.com/engineering/example-node-js-fas...
We don't make baseless claims and we're not in the business of lying to anyone.
Managed hosting - $29, you get your own server, app, automation, backups, and 24/7 support to make sure everything is working great
Centralised, multi-tenant application - $0-$9, you get no server. You get access to our app for your use. You cannot modify it or run any third party code.
We do managed hosting - and managed WP hosts... also do managed hosting. That's why it's a reasonable comparison point.
WordPress.com is not managed hosting. It's a heavily modified centralised multi-tenant application which loosely resembles WordPress. It does not run the open source codebase at all.
Ghost is 20 times faster. And once you add a single WP plugin, it's 100 times faster.
For 4 dollars a month you can.
https://www.siteground.com/wpbeginner-managed
50 dollars a month seems extremely costly. For that amount $600 a year it would be cheaper to hire someone to self host for you.