PageSpeed Insights - JavaScript

Hi SI team

https://developers.google.com/speed/pagespeed/insights/?url=finalbug.net&tab=desktop

says:

Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://finalbug.net/…nfig/da92fb59fca1c0bc9cc5bdb45b0b18e9.js
http://finalbug.net/…nfig/3209afb7b291e1afdb010dee7c523aff.js
http://finalbug.net/…nfig/4e73418290ce5c840ae86b08811ee613.js
http://finalbug.net/…nfig/f8348e14aa0e3d477bb3f68d9c834894.js
http://finalbug.net/…abox.js?fba42f665bbcc4047a23ba92244f4176
http://finalbug.net/…ns/system/modalizer/modals/jquery.min.js
http://finalbug.net/…r/modals/colorbox/jquery.colorbox-min.js

Could you give me some pointers how to optimize this?

thanks

Paul