This work will be tracked at Tim's level: #7361 (closed)
Gitlab - https://dashboards.gitlab.net/d/000000043/sitespeed-page-summary?orgId=1&from=now-7d&to=now&var-base=sitespeed_io&var-path=desktop&var-group=gitlab_com&var-page=_gnachman_iterm2_-_tree_master_tools&var-browser=chrome&var-connectivity=native&var-function=median
GitHub - https://dashboards.gitlab.net/d/000000043/sitespeed-page-summary?orgId=1&from=now-7d&to=now&var-base=sitespeed_io&var-path=desktop&var-group=github_com&var-page=_gnachman_iTerm2_tree_master_tools&var-browser=chrome&var-connectivity=native&var-function=median