Comment 12 for bug 1750273

This is a tricky issue...

Probably having a setting for this is just the way to go, since the fact is that we can't scale x11 toolkits in a fractional way. While using xrandr might have performance impacts.

So, now we scale the UI at 2 and text down when 1.5 is reached. And it works better in some cases.
While I see it's not the best in others.

As workaround (works only temporary) calling
 gsettings set org.gnome.desktop.interface scaling-factor 1

So we could go back to previous revision, or maybe set a gsettings for changing this threshold.