Paul has Spectrum internet and is using an Eero mesh router. His bandwidth was upgraded to 100 Mbps down, 12 up, but he hasn't noticed an improvement in speed when streaming. Leo says that he'll want consistency over speed when it comes to streaming. Every device wants to be first on the network to get priority and "shape the bandwidth." It's all about quality of service. He may want to look at his cable modem. If it's older, it could be the weak link in the chain.
Leo suggests that Paul buy his own DOCSIS III because it'll be newer, it'll pay for itself, and he'll save on that monthly rental. He should just make sure it's supported by Spectrum. Then he can connect his router to it directly. He may also want to get a gigabit switch.
(Disclaimer: Eero is a sponsor)