Why is the network latency very high after the switch *** enjoys the internet?

You only have 2M bandwidth, although the switch is an exclusive bandwidth device but your global line only supports 2M, so when it comes to your head it is the same as N people **** enjoy 2M bandwidth

Increase the bandwidth of the ADSL can alleviate this situation, but it depends on how many people you are using the Internet and what kind of demand, if the number of people and demand for bandwidth is high, it is better to rent a fiber. A fiber optic bar. It's just a little bit trickier and more expensive to access.

You need to make sure that your other computers are not experiencing network traffic.

There are a variety of reasons why traffic occurs, and it is possible to generate network traffic while the machine is left running.