Hi,
1)
We spent a lot of time refining performance with Uplift. We introduced the option of a cached custom css that is written to the file system, written to the head tag, or via AJAX. On even the main demo stacked with more content than ever, we managed to achieve 95+ for PageSpeed + YSlow.
We worked on improving our menu options, adding extra ajax functionality (built-in infinite scroll for shop, portfolio etc), added a proper slick app header option. We also added animated svg icons, an icon grid element in the pb (for easier icon box management), and more.
2)
No, the WP admin/options will be similar as it’s using our framework.
3)
It’s entirely possible yes. Sure we can help you out.
Thanks.