phosh 0.13.0 is out 🚀 :
https://gitlab.gnome.org/World/Phosh/phosh/-/tags/v0.13.0
Improved call handling when shell is locked, lockscreen notifications, high contrast theme support and much more. Check the release notes.
@letterus I don't have a pine phone so i can't compare. It e.g. depends on *where* things are slow since that's affected by e.g. pixman, mesa, if your distro's kernel trades CPU for battery live, etc... so it's hard to tell from here what the cause is.