CSS CONSOLIDATE "ON"
This theme needs the css consolidation to run properly all features.
Open "Advanced" panel ( at the left-bottom side of the interface) and select "Consolidate CSS files"
CSS consolidation will speed up the loading of webpages. With consolidation on, pages will typically have a snappier feel to them when loading - less stagnated loading and shifting of elements.
INFO: There is no direct impact on SEO. However it’s a well-known fact that search engines rank faster loading webpages higher in their SERPs (search engine result pages), in reflection of the better VE (visitor experience) gained.