Mobile Menu Step

Dear all,
I noticed that the mobile menu appears for the first time on a very large width (around 1240px).
I have an horizontal menu with a limited number of elements: when I resize the screen, the full menu disappears under 1240px, too early.

It is possible to change that value, activating the mobile menu at a lower width (i.e. 900px)?

Thanks for your support,
Alessandro