Choco install wsl-ubuntu-1804 is slow

First of all, thanks for supporting WSL!
Other than creating a sudoer user (appveyor does that by default btw), adding new git.autocrlf/symlink flags and setting up WSLENV to pass on environment variables to WSL, there have been no hiccups! My config

I’m wondering if anyone knows how to speed up the installation of a distro though.
As per “choco install wsl-ubuntu-1804” took almost 4 minutes. 4 minutes on every run, is time wasted both for me, but also for travis.

Would it be possible to specify in .travis.yml that I need wsl-ubuntu-1804 on my image, and thus get a prebuilt image?