I currently have a old Verizon fios actiontec router with 75/75 speed. I've noticed lately that my video has been a bit grainy and audio is choppy. I've also got a ring extender pro. Would it be better to add a mesh system to my current router or upgrade my fios service to gigabit speed with a g3100 router to resolve the issue? I currently have 4 ring cameras and 2 nest cameras on wifi