There's too much of everything.
Page load time: 12.28s
Total page size: 1.67MB
Total number of requests: 121
You can't have everything. Make choices, cut everything that isn't completely necessary.
f.e. your articles are presented by:
- most liked
- browse articles
- top authors
It's a bloody mess!
You have 3 different content sliders, tons of images, a massive amount of css and js files, ...
On top of that, strange and weird pieces of js:
WP Content Copy Protection
These all add event listeners that slow down your page and make it completely irresponsive and slow.
I don't want to sound harsh but it's a mess. Think about what you want, how you want to tell your story and make choices. You can't have it all. Think minimal! Take a look a http://www.microsoft.com/. That's a huge company but look how simple that site is.