Speed - Sparkling... ideas?

Love the sparkling theme, but its sloooow :frowning:
Checking the sparkling demo on google PageSpeed Insights will give it 40 on a scale to 100, 40 is far from good :frowning:

Any ideas on how to speed it up?
“render-blocking code” seem to be a problem, I dont understand how to act on it though =(

Good morning

this theme is very lightweight if you want to improve speed check out this link and apply all the changes: