Since virtual private servers provide more resources for your website (e.g. CPU, RAM, etc.) than shared hosting, you’ll find that your website feels more responsive. Plus, with full control over the virtual server, you can install and remove software at will according to your needs rather than being stuck with what the host offers..
Configuration of your server plays an important role in the speed and performance of your website. What capacity processor you will get, how much RAM you will be allocated and how big your share in the disk size will be, all matters. Apart from this, you should also find out about the quality of the physical machine your VPS is created on. It should be of reputed brand and high capacity; if the foundation is weak, you can’t expect a strong construction.