Pack process is extremely slow

[pr1s10n3r]

I recently discovered this package because I needed to automate the packaging of my extension through a pipeline. However, this is how long it takes to package a small, unrelated extension:

$ time crx pack -o ../my-chrome-extension.crx -p ../my-chrome-extension.pem -b 10000000000 .                             
crx pack -o ../my-chrome-extension.crx -p ../my-chrome-extension.pem -b    349,10s user 160,66s system 125% cpu 6:44,85 total

The most surprising thing is that my laptop is a good machine! Here are my specs:

--- CPU INFO ---
Architecture:                         x86_64
CPU(s):                               16
On-line CPU(s) list:                  0-15
Model name:                           11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
CPU(s) scaling MHz:                   76%
NUMA node0 CPU(s):                    0-15

--- MEMORY INFO ---
               total        used        free      shared  buff/cache   available
Mem:            31Gi        12Gi        12Gi       1,6Gi       8,8Gi        19Gi
Swap:          5,7Gi          0B       5,7Gi

I wanted to ask if there's something I'm doing wrong or if there's anything I could do to optimize the build time. When I use Chrome's graphical packaging, it takes no time at all.