Problem with website caching | WordPress.org

The plugin is very good and increased my page speed performance. But I had to deactivate it because of the problems I had with website caching.

When website caching is on, it does not update the home page for mobile users when a post is created or updated. This is a news website, so it needs to always be up to date with the latest news.

But that’s ok, I could just deactivate the website caching option, which I did. However, that caused a bigger problem: the website became too slow (slower than without the plugin), and the page speed no longer worked: http://prntscr.com/dO7HtnTf_psq (page speed error)

I guess the best way I could use the plugin is with caching enabled and clearing the cache via code (PHP function). Is that possible? Is there an example of how to clear the cache programmatically?