If you host it in a VPS environment, your site won't share resources with neighboring sites, the way it would with shared hosting. In fact, your site lives in a partitioned server area that has its own operating system, storage, RAM, and monthly data transfer limits, so you can expect smoother, more stable site performance. The sites with which you share your server are far less likely to affect your site—or even take it down altogether—than they would be on a shared site. Knowing how VPS setups operate is just the first step, however. You still need to familiarize yourself with the essential features needed for building a rock-solid, VPS-hosted website.
With VPS, you pay for what you use in the sense that you select a certain amount of bandwidth and storage to be allocated in advance. Scaling involves resizing your resources. But with cloud hosting, you pay for what you use in that your resource levels are not pre-determined, which means unpredictable pricing that tends to be more costly than VPS due to the overhead and complexity involved.
Similarly, in the case of VPS, there are several users that are using the same server but they are isolated from each other. It means that no one will be affected by how much resources another is using. You will get the speed and security that you need without compromise. It is almost a perfect scenario because you will get the benefits of a private server with shared cost of services.
InMotion Hosting includes managed hosting features for advanced server optimization with your VPS—including updates for LAMP stack, cPanel, and WHM, as well as OS security patches. You also get a free cPanel license and multiple dedicated IP addresses. We also like the snapshot functionality which allows you to revert to a previous instance of your files and processes. And, InMotion does not limit you to a certain number of CPU cores.
And if your “neighbor” on the server is hacked, there’s little chance the infection will spread to your VPS because the hypervisors that are used to create separate VPS environments deliver multi-layered network security and keep tight controls on what enters and leaves. Your root access also means you can add or customize your VPS security software as you please.

For most purposes, a virtual private server is similar to a physical server and since they are software-defined, they can be more easily configured and created.

A virtual private server uses the virtualization technology to partition the physical server hardware into many virtual servers. This means that a physical server is divided into smaller, virtual parts. The virtual server assigned to you is completely yours and provides you with the complete capacity of a dedicated server at a lower cost. A virtual private server has its own storage system, its own operating system, dedicated RAM and CPU resources. VPS hosting environment can also be customized according to the requirements of the user. VPS hosting can be called as an intermediate hosting solution between shared hosting and dedicated hosting. Hosting on a virtual private server is an ideal solution for website owners who seek faster page load times, robust service and stability at an affordable price.

Essentially, here’s the criteria I would use to judge things – if your site is made up of primarily static, HTML-based content, then you probably don’t need a VPS package.  However, if you have a large amount of files stored, multiple sites, dynamic content, and the possibility of major traffic from time to time, then you might consider upgrading to a VPS. It’s a powerful package that allows you to do more than you could with a shared hosting plan, but requires less investment than a dedicated server.