How to solve the slow user switching issue on Linux?

If there is a delay when switching to another user, it may be due to the following reasons:

1. System is overloaded: You can use the top or htop command to check the system load. If the load is too high, you can try closing some unnecessary processes or services.
2. Processes or services are consuming too many resources: Use the ‘top’ or ‘htop’ command to see which processes or services are consuming excessive resources, and then terminate them.
3. The user configuration file is too large or has errors: You can try deleting or modifying the user’s configuration files, such as .bashrc, .bash_profile, etc.
4. Insufficient disk space: You can use the df -h command to check disk space usage. If there is not enough disk space, you can clean up some unnecessary files or expand the disk space.
5. Network delay: If connecting remotely to a Linux system via SSH, it may be network delay causing slow user switching. You can try connecting to a local terminal for testing.
6. System Configuration Issue: If the above methods are not working, it may be a problem with the system configuration. You can try reinstalling the Linux system or contact the system administrator for further investigation.

I hope the above methods can help you solve the problem of slow user switching on Linux.