Better in PC games?

I would like to know how to get better in shooter games like fortnite and paladins

As in all things, your systems set all limits.

Just like I will never run the 100m in under 10 seconds, people have limits in games that they can't overcome.

But practice helps a lot, it just ends somewhere.

Practice creates masters

Primary factor: experience

Secondary: good PC, high refresh rates, good response time, appropriate settings, hotkeys (e.g. On the mouse)