Regarding the network speed, because the library is a public place with a large number of users, the network speed may be affected to some extent, but it is generally acceptable. In addition, the library WiFi is generally free, and readers can use it for free.
As for telecom WiFi, I'm not sure. Generally speaking, however, the WiFi provided by the library is provided by the library's own network, not by telecommunications. Readers can try to connect to the library's WiFi. If they can't connect or have an abnormal situation, they can ask the library staff for help.