The most important aspect of the web browsing experience by far is the speed with which a web page loads. A large number of audience is lost if a page does not load fast enough. With the growing online arena, people have become more demanding when it comes to how fast they can access the content they are looking for, and if you cannot provide it within the first 2 seconds of someone opening your page, you are no longer relevant. This is why caching plugins have become popular. The make sure that your web speed is fast enough to keep people engages and interested in what you are offering them.
Each plugin is different and provides a different set of options, for you to choose from, some of them will allow more customizations than the others. The best WordPress caching plugins are listed here for the sake of reference. You can of course go for other plugins which cater to your needs better than there, but this list contains few of the most convenient ones out there. The point is to increase the speed of your web page, as long as the plugin delivers to that, you are good to go.
In the highly competitive, fast paced online market, you need to make sure you stand out enough to keep your audience interested or they will find an alternative to move on to, because there will always be someone doing what you are doing, you just need to make sure you are doing it better. And one way to do that is to find ways to speed up your web page.