Adsense Mobile pagespeed insight "should Fix"

[Nodaz]

Recently i incorporated Adsense into a  forum:  I am very new to Adsense, that said i am surprised , i am actually earning more than i thought.

In this process i have come across PageSpeed Insights and have the following "insight" on the mobile tab :

Eliminate render-blocking JavaScript and CSS in above-the-fold content ( this is listed for both mobile and desktop)
84 / 100Speed
Should Fix:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking script resources and 2 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://...forums.com/Themes/default/scripts/script.js?fin20
    http://...forums.com/Themes/default/scripts/theme.js?fin20
    http://...forums.com/Themes/default/scripts/sha1.js

Optimize CSS Delivery of the following:

    http://...forums.com/Themes/default/css/index.css?fin20
    http://...forums.com/Themes/default/css/webkit.css

Consider Fixing:
Minify JavaScript( this is listed for both mobile and desktop)
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 4.3KiB (29% reduction).

    Minifying http://...forums.com/Themes/default/scripts/script.js?fin20 could save 3.3KiB (26% reduction) after compression.
    Minifying http://...forums.com/Themes/default/scripts/sha1.js could save 1KiB (47% reduction) after compression.

Minify CSS ( this is listed for both mobile and desktop)
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 3.2KiB (26% reduction).

    Minifying http://...forums.com/Themes/default/css/index.css?fin20 could save 3.2KiB (26% reduction) after compression.

Should Fix:
Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.

Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.

Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.

Ive seen the forum on mobile and it is very hard to navigate ( on a NEXUS 5 and even on a Galaxy Note4)..is there anything that can be done relating to what i listed to above to improve these "issues" as google sees them?

[Kindred]

Use a different theme?

[margarett]

SMF's 2.0 theme isn't mobile-optimized so pretty much all these points can't be considered in it...

[Antes]

SMF 2.0 does not deliver JS / CSS files minimized, those information (errors) are mostly about minimizing the JS/CSS. If your forum is established which means you are not going to do changes constantly, you can take the output of those files (Google supply minimized versions), and replace those files. You'll not get a blazing FAST forum with those changes but surely save some bytes on page load.

[Arantor]

The ones that aren't about minification cannot be fixed easily in SMF anyway because it requires rewriting all the JS to not be inline and/or depending on preloading the way they currently are.

[Antes]

oh yea, sorry forgot to mention, defer all JS/CSS to footer needs quite a work to do it. Even you move all JS/CSS to footer you still need to fix the inline-JS depending on other JS files.

[Nodaz]

ok, thanks for the information, just curious more than anything but i appreciate the insight.