My Results:
My website was terribly slow and my poor PageSpeed score reflected that. But after using the LiteSpeed Plugin, I increased my PageSpeed Score on mobile from 55 to 99, and 81 to 100 on desktop. Scroll Down to see the steps.
Here's How:
Download LiteSpeed Cache and select the preset tab.
Apply preset and you are done! Your website should feel noticeably faster now. It feels criminal how easy it is. I hope it helps.