I kept trying it by doing the "hold the volume down and power down, release power and press again when LG screen comes up" but it never worked, yet it always did on my other android devices. Tried it again last night and of course, it finally worked.
I have not noticed much lag but I have also not added all of my apps back. I tried to use the Android Beam from my Moto X again, like I originally did when I first got my G Flex 2, but nothing would transfer over this time. Not sure what is going on there. Anyway, I will keep using the Flex 2 until I can check out the 2015 Moto X.