how to free menus memory

I haven't looked into your code I'm afraid, but when memory isn't freed in menus, I find it's often because of something like this:

function menuA() {
  console.log(process.memory().usage);
  E.showMenu({
   one : menuB
  })
}

function menuB() {
  console.log(process.memory().usage);
  E.showMenu({
   two : menuA
  })
}

menuA();

The problem here is that E.showMenu calls functions with menu as an argument. Even though the argument isn't used in either menuA/menuB it's still there (in case some code in the function used arguments) so you're stuck with this chain of references.

If you use () => menuA() instead of just menuA then that ditches the argument, and memory isn't leaked

function menuA() {
  console.log(process.memory().usage);
  E.showMenu({
   one : () => menuB()
  })
}

function menuB() {
  console.log(process.memory().usage);
  E.showMenu({
   two : () => menuA()
  })
}

menuA();