How do I Eliminate render-blocking JavaScript and CSS in above-the-fold content

[SmithsWelding]

I am looking for help on my pagespeed errors -  Remove render-blocking JavaScript: anc CSS Above the fold.

I can't figure out how to fix this in Weebly.  I do see that one responce was "all sites will have this"  so I tested it....and most did not.  Is there a way to fix this in Weebly??

Also have error Minify JavaScript 

Speed is slow and I need to fix it.

Thanks

[Queso]

Hello BSMITH!

This may be something our Community can help with further, though it would likely require some code customization. Where have you noticed slowdowns?

[SmithsWelding]

I am getting these same issues on my other sites as well. 

*  All my pictures are compressed to150ppi....so could it be the themes?

*  All of the "remove render-blocking Java-script" are noted as "fonts.googleapis" or "editmysite"

*  My minifying JavaScripts are in theme files

SO how do I fix these to improve my page speed and improve both my desktop and mobile performance?

I have NO HTML background, just what I have read on H1,H2,H3.

I would greatly appreciate any help you could provide.  Everything I've read here in the community states these issues can not be corrected, which I find hard to believe - why would weebly these known issue which can't be resolve?

Thank you Very Much!!

Blake's Assistant - Michelle

[Queso]

I'm no SEO expert myself, but some of these things are indeed part of the themes and build process. Some of it is simply a matter of balancing between load time and content on the site itself.

[SmithsWelding]

That's pretty much what I thought but was hoping it could be resolved. Seems strange with speed being so important build-in themes would cause a site to slow.
Thank you for your response.