Style of responsive menu on mobile divices

I really like your menu when viewing on the computer.
But when viewed on mobile and tablets is a big problem.

The fact is that a large menu with a large number of paragraphs the style of the "accordion" creates a huge band with the data, especially if the menu 3-level. The scrolling of the menu with your finger generally causes a mess on the screen - some submenu are revealed, something closes. To understand what is happening on the screen, even it is difficult for me and the visitor from the site just leave. And this is unacceptable.

Now there are elegant solutions (sidebar menu with cover style), which displays only the items top-level menu, selecting either - only open the desired submenu, second level, and so on.
From the point of view of a visitor - perfect.
Here's an example: canvas.za-studio.net/index.php/payment
Is it possible to implement such a scheme with Your menu? It is very necessary!!!

Hi Alekcand.
Thank you for using our product and thank your idea.
I will note your idea and our develop will check and try for the last version.
Thank you