Hi @jahlive,
If your Google speed score went up a lot, those things should be nothing to worry about.
For example, if you get render-blocking message about a web font, doesn’t necessarily mean it will render slower your page, if your total number of fonts and font-weights used on your page are reasonable lower. Your main concern should be optimizing the web fonts rendering performance as follow:
- Combine multiple fonts into one request
- Make sure your Font API link is placed before all the <script> tags.
Also, playing with W3 Total Cache configuration will allow you to take full advantage of Speed Booster Pack plugin.
However, deferring CSS files(like Google fonts) it seems pretty useless to me since it has almost no benefit for your page and is a huge time/effort investment to achieve it.
Thnks for the rating!