Thank you for the code for mobile menu.
Regarding the scroll problem on Lumia I do not understand this. How can that happen that you have no problem with scrolling with all plugins active, but I have problem with all my two Lumias. How can it happen? I do not understand. I have to believe myself that it does not work because I can see it, sorry. I checked again with my Lumia 620 and the situation is worse that on Lumia 925. Could you check it for me please on a Nokia Lumia somehow?
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.