Very high CPU usage on main page



The mainpage ( have high CPU usage on Chrome (version 53, 64bits).

The CPU usage is about 30% on a i7-4770, which is very high.



I would ask our website developer to take a look at it.


Additional informations :

High CPU usage on fullscreen, but not on half screen.
Other pages does not have the problem.

The search & menu icons (top navbar) are not clickable on the middle of the button, but clickable on the high and low portion.