1. Too many software programs are installed and running on the computer, causing too many computer resources to be occupied, which affects the computer's running speed and is relatively slow;

2. There are too many junk files in the computer operating system and too many disk fragments, which affect the reading and writing of hard disk data;

3. There is a problem with the local connection settings (IP settings, DNS settings, etc.);

4. Gigabit causes slow connection during the process of adapting to 100M or 10M.