first detect the error of your site. which of error you getting . then comment here in the comment section. I will try to give you a better solution.
first you have to think about three main design of your website for three particular device like desktop, Table and mobile. then you have to make a sketch of your imagination.
Revolusion slider is very user and device friendly for any WordPress site, if you can know how to use it. there have so many problem after saving you ca see that it is not saving data or showing the loading image. to solve those problem you to first understand the inside functionality of this slider. then it is very easy to use.
you can make different view of the same slider in different device.
visual composer is good plugin by WPBakery. They have made this thinking so many things. first of all it can be customised by any component as a plugin. you can reuse that in any wordpress page. This system can manage big content related website.