how to make my pc get faster while starting

The best way to improve PC performance is to upgrade your slowest component which is typically your secondary storage (hard drives).

A lot of systems today (Windows, Linux, et al) will let you hibernate your system, saving runtime state to the hard drive. When you restart it, it only needs to restore the system runtime state from the drive, and not boot the entire OS. This is typically much faster (by as much as an order of magnitude - 10x) than booting the entire OS and user interface. The other approach is to use a solid-state disc (flash disc, or SSD) as your system/boot drive. They are not cheap, and have other issues, especially with regard to reliability and longevity.