Studing about cache

So basically i where studing about cache, the main ideia was to implement it in the sistem, but then i realized something:

• Theres is nearly no difference between cache and a normal request in an localhost project, adding the cache would not improve anything, sometimes it maybe even slow the website, because the page would need load more code.

I realized it afther a while studing about it, but anyway lets focus on another thing.
Also i where studing with google for devs: https://developer.chrome.com/docs/workbox/caching-strategies-overview