No, you remove dirtyregions and add smartredraw.
And if only smartredraw is in the advancesettings.xml, it will turn off the old dirtyregions processing despite the default being 3?
You’d probably have better luck getting an answer from Kodi devs. But as I understand it, if you don’t supersede the dirtyregions settings, Kodi should use the smartredraw option.
It’s also possible that the two just work together.