Forget about the "noisy neighbors problem" and improve security with CloudLinux, an operating system specifically designed for shared hosting providers.
CloudLinux isolates each customer in a separate "Lightweight Virtualized Environment" (LVE). LVE limits how much CPU, memory, disk I/O, and other resources each user can consume. This ensures that tenants cannot jeopardize the stability of your servers. Additionally, tenants are isolated from one another to avoid security breaches. This way, various security threats (for example, malware) cannot spread from one customer website to another.
Read how to install CloudLinux on the Plesk server.
Read more about CloudLinux.