Several factors that affect IIS performance (1)

Bandwidth is one of the first issues to consider
When discussing bandwidth issues, let's talk about Internet connection types and network connectivity capabilities
Internet bandwidth determines the speed with which your computer obtains data and the number of requests that can be processed concurrently. If you cannot provide sufficient bandwidth for the number of requests to enter your site, there will be delays and failures. The amount of bandwidth you have is determined by the type of connection you have selected.
By guessing the average size of a content file, the time it takes to send a file of that size, and the number of users you want to support at the same time, you can choose a reasonable connection.
As a general rule, the time to send a page should be less than 5 seconds. This does not include the accompanying graphics, audio, and video information. Typically, the accompanying file is loaded after loading this file. The general rule for accompanying files should be completed within a time of less than 30 seconds. This will increase the rate of access.
After you have determined the bandwidth required by your Web or FTP server, make sure you provide additional bandwidth-required services. such as: Mail Service, audio and video services. Therefore, please ensure that sufficient bandwidth is included for these services.
In general, an Internet connection arrives at a router, and then the network adapter connects the computer to the router. You need a high-performance network card to prevent bottlenecks between Internet connections and computers. For example, if you connect to the Internet with a 1.54MBPS-bandwidth T1 line, you should place the server on a 10MBPS-bandwidth Ethernet LAN. However, to connect to the Internet using the T3 line, you should consider providing Fddilan for the server because the T3 45MBPS bandwidth is much higher than the Ethernet 10MBPS bandwidth.
Now, the Beijing Telegraph office Bandwidth is T3 line, 45MBPS. Shanghai Long Letter Bureau is 105MBPS of bandwidth.
The chinaasp server chooses to put in the Shanghai Long Letter Bureau, therefore eliminates the bandwidth to the access speed influence.