Problem with leverage browser caching

I am using WP Rocket on my website, when I look up my website headers it tells cache-control max-age=0.

Why my website max-age is 0?, how I can specify a time on this? Also does leverage browser caching improve website speed?

Anyone in here can solve out my this problem?

Thanks In Advance :heart:

As per screenshot, I do not see any problem with it. Page caching is already working fine.