Why font rendering in clearlinux is bad than ubuntu?

I have compared with gnome tweak > fonts > hinting (slight) and antialiasing(subpixel for LCD) on my dual boot of ubuntu and clearlinux. Ubuntu font is way better?
How can i make clearlinux font render better?

I even changed the entire font to ubuntu regular like in ubuntu in clearlinux.

$ xdpyinfo | grep dimensions
  dimensions:    1366x768 pixels (361x203 millimeters)