Hi! I’ve done a test also with the Yoga template.
I’ve removed the blur effect from the main 2 bubbles (on the top)…and now I’m getting a Grade A.
See results here.
The test website: http://1ed24f-55873.preview.sitejet.io/
I’m not able to get a lower score … so I can’t reproduce your issue.
The unused JS hint was discussed here: Unused javascript / CSS (google pagespeed)
This Template, in particular, is heavy on images… and you can see this in the page details section
So… I think the main thing you can do in order to optimize the loading time is to reduce (the size or the no. of images) or try to delay them by making sure that all the images below the fold line have the Lazyload option active.
Hope this helps!