You're queuing up tons of animations every time the scroll event fires, adding another 800ms to the overall time. You need to set some sort of flag to stop the scroll events from firing when the menu is showing, and remove the flag when scrolling goes back to the top to allow the menu to hide again.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.