I think the DT, like all samplers in it’s range - past and present - is out to or perhaps unintentionally color the sound.
I think the OT on the other hand strives to be as transparent as possible, a la a studio-in-a-box.
They aren’t. It’s 16 bit by default. The switch of which is crucial, as made evident by this recent thread:
In addition to gain staging, I think the FX settings by default are less than ideal and also need to be worked.
Keep in my mind: it seems a lot of complaints are from newer owners. It aint going to set your settings for you.