Is it normal for `guix pull` to be slow?

[rczb]

Installing a package with Guix shows a normal speed, while invoking 
`guix pull` does not. Is it normal, or due to my own environment?

# Networking

Education network in Mainland China. Specify 
`https://mirror.sjtu.edu.cn/git/guix.git` as a mirror for the Git repo. 
No extra substituter.

# Operating System

```

Operating System: openSUSE Tumbleweed 20240315
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.9-1-default (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840H with Radeon 780M Graphics
Memory: 27.1 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: LENOVO
Product Name: 21J2
System Version: ThinkBook 16 G5+ APO

```

# Guix

```

guix (GNU Guix) 5267c6073c3bdc6ba7874fc776c23c928f1ee263
Copyright (C) 2024 the Guix authors
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

```