How do I improve broswer caching

I added the following code to my .htaccess file to leverage browser caching for my website:

EXPIRES CACHING

ExpiresActive On ExpiresByType image/jpg "access 1 year" ExpiresByType image/jpeg "access 1 year" ExpiresByType image/gif "access 1 year" ExpiresByType image/png "access 1 year" ExpiresByType text/css "access 1 month" ExpiresByType application/pdf "access 1 month" ExpiresByType application/javascript "access 1 month" ExpiresByType application/x-javascript "access 1 month" ExpiresByType application/x-shockwave-flash "access 1 month" ExpiresByType image/x-icon "access 1 year" ExpiresDefault "access 2 days"

EXPIRES CACHING

In GTMETRIX it showed that the problem of the browser caching improved a little bit - it went from 0 to 56 in the results - it's in the pic below. But there are still some things that are causing the site to load slowly, should I add some specific code to it or should I use a different one? Or is there a way to resolve the specific issues that are left?

Thanks so much and have a great day.

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