Hello Sir,
You can use koala software to build it.
http://koala-app.com/
check:
Thanks
You have to use optimize images and lazyload to increase loading speed.
For lazyload, you have to change lazyload attribute in revolution slider function.
FilePath: xhtml/js/rev.slider.js
check : https://www.themepunch.com/revsliderjquery-doc/preloader-lazy-loading/
Khelesh M
DexignZone Team