Charlie D. - I think earlier you said you were a novice. You are asking for help but those of us that might be able to help need what several others have asked for, i.e. a diagram of exactly what devices and functions you are trying to get to work with the speed you expect.
For example, I have Spectrum for Internet/TV (not phone), security cameras that are wi-fi connected, a personal router/modem that I use to connect to Spectrum for Internet access. I have a DVR but it is used only for TV use. My security cameras are wi-fi connected to the Internet and access to them is via apps on my phone and tablet from anywhere, an entirely different setup from what you have.
So your use of wi-fi, Internet, DVR, etc is entirely different from what I use. And the same may be true for others trying to figure out what you have. So without specific info on your devices and how they are connected, these discussions just go in circles.