How to speed up an OctoberCMS/Laravel 5.1 Application?

I'm using OctoberCMS (CMS built on Laravel 5.1). But the issue is that the website is very slow.

I minified HTML,CSS,JS files and even minified octobercms's libraries itself and still have the same problem.

I tried to cache static files by editing .htaccess file it came a little faster but still so slow when I tested it using google speed test

When I did install wordpress on my server and tested it it was much faster than my OctoberCMS site.

Does Anyone knows why is that? and how to fix this speed issue?

via Chebli Mohamed