ROS 2 CLI is slow

[Ryanf55]

Describe the bug

Every ROS 2 CLI command is much slower when using qemux86-64 with meta-ros than something like Ubuntu 22 native. It can take 10-20 seconds for some commands. I see about 5 seconds for ros2 -h even on my super powerful desktop.

To Reproduce

Repos:

repositories:
  poky:
    type: git
    url: git://git.yoctoproject.org/poky
    version: kirkstone
  meta-openembedded:
    type: git
    url: https://git.openembedded.org/meta-openembedded
    version: kirkstone
  meta-ros:
    type: git
    url: https://github.com/ros/meta-ros.git
    # TODO switch to kirkstone once kirkstone-next is merged
    version: kirkstone-next

Hashes

$ vcs custom --args rev-parse --short HEAD
/usr/bin/vcs:6: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  from pkg_resources import load_entry_point
...
=== ./meta-openembedded (git) ===
730e44900
=== ./meta-ros (git) ===
685215f98
=== ./poky (git) ===
426dfdc8d2

1. Build ros-image-core
2. runqemu qemux86-64 ros-image-core-humble
3. Login with root username
4. time ros2 --help

Expected behavior

ROS2 CLI is normally much faster. Here's the same test on host OS: