How to hide default mobile menu?

Hi,

First of all, great plugin it’s working perfectly as intended.

I’m using mystile theme for my e-commerce page.
The reason I downloaded your plugin is because the default mobile menu sucks.
Now that I have your mobile menu working, how do I remove the original one?
Preferably in a way that it doesn’t need to load in the first place, instead of hiding it. I think my site already loads slow enough.

My website: http://www.acestrife.nl

Much appreciated!

https://wordpress.org/plugins/mobile-menu/