|You can set up Quality of Service (QoS) rules in your router that will prioritize certain types of traffic over others. |
Most modern routers (last 4 years or so) have a rudimentary QoS section that has predefined rules that can put gaming traffic at a higher priority than say YouTube or video traffic.
You can also modify these rules to run on a schedule so when you want to watch videos they will load normally.
Back in the dial up era... I would get into fights with my sister over who was going to connect to AOL first... How times would change.