For disabling slider or changing it with other title types
Example Breadcrumbs or Title, Go to Page Edit > Page Settings > Title Type
For overall website title type go to Theme Options > Title & Bredcrumbs
You can edit Carousel settings in its edit settings and change the each Image from its edit.
For Parallax settings go to Carousel Settings > More tab
Instead Quick Contact also you can create any page and assign it.
In widgets find Footer 1 to Footer 3 sidebar area sections and edit them.
For changing background of Footer, Go to Theme Options > Footer > Footer Widgets > Container Style Kit