hey there
if you are having any issues with nox its probably because Hyper-V of Windows 10 is blocking your VT-x
so Enable VT in Bios and Disable Hyper-V on windows ..( Avast Can Affect VT too so you can Enable VT in Avast if you have it)
then Install HAXM Driver ( google it)
after that try to give nox at least 1gb of ram and switch it to Phone Mode
it will be faster than any phone available these days
hope you guys find this helpful and someone make a good tut out of it
have fun