Hi there!!
I am a professional web developer having experience of 6+ years. I can fix all your issues regarding WP rocket plug in. I can eliminates the render blocking system of JavaScript. Please tell me that only JavaScript is blocked by WP rocket or some other files also?
I have made different websites on WordPress and I am acknowledged about all plugins of WordPress. I have expertise in HTML, CSS, JAVA, JavaScript, PHP, jQuery etc.
For further details, kindly join me on chat where we will discuss in detail.
Regards,
Faisal.H