Rendering Blocking Resources

Hi,
I was testing the performance of http://blackmothersunited.org and found that it scored exceptionally low due to the amount of render blocking resources it contains.

I'm unsure what to do with this information since I'm using Spirit right out of the box and haven't installed anything that I'm aware of that would impact the site's ability to render properly. I've copied and pasted the the information, WPMU Dev provided below my signature for you to review.

I'm hoping you can provide me with some insight since I'm not a developer and I'm wondering what steps I can make as a designer to improve the site's performance in this particular area.

Thanks in advance for your help!

Sincerely,
Kimberly

REMOVE RENDER BLOCKING RESOURCES
OVERVIEW
Your page has 14 blocking script resources and 17 blocking CSS resources. This causes a delay in rendering your page.
HOW TO IMPROVE
WP Hummingbird helps you move blocking JavaScript to your footer, and combine and compress blocking CSS in your header. Use WP Hummingbird to:
Move as many compatible scripts as possible to your footer.
Optimise your CSS by combining and minifying as many compatible files as possible.
Then run a new test to check what impact it makes on your score.
INSTALL WP HUMMINGBIRD
Note that it can be very hard to get a perfect score for this rule. Some plugins and themes due to their design may not be able to handle their scripts deferred to the footer without breaking, so will have to be left in their original position. And often combining and minifying all CSS files will not completely remove their impact on your score. Just try multiple combinations to improve this score as much as possible.
BENCHMARKS
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://blackmothersunited.org/wp-includes/js/jquery/jquery.js?ver=1.12.3
http://blackmothersunited.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.0
http://blackmothersunited.org/wp-content/plugins/essential-grid/public/assets/js/lightbox.js?ver=2.0.9
http://blackmothersunited.org/wp-content/plugins/essential-grid/public/assets/js/jquery.themepunch.tools.min.js?ver=2.0.9
http://blackmothersunited.org/wp-content/plugins/essential-grid/public/assets/js/jquery.themepunch.essential.min.js?ver=2.0.9
http://blackmothersunited.org/wp-content/plugins/events-and-bookings/js/upcoming_calendar_widget.js?ver=1.9.2
https://s7.addthis.com/js/300/addthis_widget.js
http://blackmothersunited.org/wp-includes/js/jquery/ui/core.min.js?ver=1.11.4
http://blackmothersunited.org/wp-content/plugins/ultimate-social-media-plus/js/shuffle/modernizr.custom.min.js
http://blackmothersunited.org/wp-content/plugins/ultimate-social-media-plus/js/shuffle/jquery.shuffle.min.js
http://blackmothersunited.org/wp-content/plugins/ultimate-social-media-plus/js/shuffle/random-shuffle-min.js
http://blackmothersunited.org/wp-content/plugins/ultimate-social-media-plus/js/custom.js
http://blackmothersunited.org/wp-includes/js/wp-embed.min.js
http://blackmothersunited.org/upfront-dependencies/scripts/06ba208866b352fe9080a0f414ea0ba2?ver=1.1.2
Optimize CSS Delivery of the following:
http://blackmothersunited.org/wp-content/themes/upfront/styles/global.css?ver=1.1.2
http://blackmothersunited.org/wp-admin/admin-ajax.php?action=upfront_load_grid&ver=1.1.2
http://blackmothersunited.org/wp-content/plugins/essential-grid/public/assets/css/settings.css?ver=2.0.9
http://fonts.googleapis.com/css?family=Open+Sans%3A300%2C400%2C600%2C700%2C800
http://fonts.googleapis.com/css?family=Raleway%3A100%2C200%2C300%2C400%2C500%2C600%2C700%2C800%2C900
http://fonts.googleapis.com/css?family=Droid+Serif%3A400%2C700
http://blackmothersunited.org/wp-content/plugins/ultimate-social-media-plus/css/sfsi-style.css
http://blackmothersunited.org/wp-content/plugins/ultimate-branding/ultimate-branding-files/modules/custom-admin-bar-files/css/general.css?ver=1.0
http://blackmothersunited.org/wp-content/plugins/ultimate-branding/ultimate-branding-files/modules/favicons/css/admin.css?ver=1.0.0
http://blackmothersunited.org/wp-content/themes/upfront/elements/upfront-newnavigation/css/unewnavigation-style.min.css
http://blackmothersunited.org/wp-content/plugins/events-and-bookings/css/upcoming_calendar_widget.css
http://blackmothersunited.org/wp-admin/admin-ajax.php?action=upfront_load_styles&layout%5Bitem%5D=archive-home&layout%5Btype%5D=archive&ver=1.1.2
http://blackmothersunited.org/?sccss=1
http://fonts.googleapis.com/css?family=Open+Sans:300,300italic,regular,italic,600,600italic,700,700italic|Oswald:300,regular,700
http://blackmothersunited.org/wp-content/themes/uf-spirit/style.css
http://blackmothersunited.org/wp-content/themes/upfront/style.css
http://blackmothersunited.org/upfront-dependencies/styles/7c838ca190897aec84f27f5d3a24e87d?ver=1.1.2