Dde-dock high cpu usage

I’ve installed transmission-gtk

Should work OK - but just for ‘fun’ what QT settings have you got in your environment? Could you post the results of:

env | grep QT

in case it might be relevant?

QT_QPA_PLATFORMTHEME=qt5ct

Which direction is your scaling off? Too small?
QT_SCALE_FACTOR=1.5
if so…

Thanks, that made the fonts readable