Managed Server vs Shared Hosting

There are a lot of things that make cloud hosting services so attractive. The most notable are:

Scalable resources — When it comes to scaling your assets on a per-need basis, there is no better choice than cloud hosting. In a standard shared setup, if you run out of storage space, bandwidth, or RAM, you would have to upgrade your whole account to the next tier. Cloud hosting lets you adjust resources according to the current usage, ensuring your website can run smoothly even during traffic spikes.
Optimized performance — Utilizing a vast network of servers guarantees great worldwide coverage and can really skyrocket a website. Especially useful for high-traffic sites, a reliable cloud configuration will handle even the most severe traffic spikes without putting much load on your hardware.
Uptime reliability — Every web server is made up of mechanical parts, and they will inevitably fail after some time or excessive usage. Cloud hosting comes with increased redundancy, so your website availability will never be affected if anything unexpected happens. Even considerable traffic loads and DDoS attacks won’t be able to bring your service down.

Read more on: https://www.scalahosting.com/blog/shared-hosting-vs-cloud-hosting/