Your not the only one on this forum having a problem with the accuracy and refreshingspeed of DxO. See this example and i think if we search there are more.
What i am interested in is how compare the Exported tiff’s and jpegs?
i know by manual sharpening you need a good and acurate preview and hopefully not need to wait after every adjustment.
As i recal correct i think i read somewhere that some DxO Staff member did explain why preview behaves as it does.
And i read on the forum that pl3 vs pl2 is more responsive so they try to do something about it.
So you do the final sharpening in C1? Is that also about the export posibilities in the sharpeningdepartment? (i remember that others liked to have more export settings for this kind of things)
patient is i think the key to see DxO sort this out.
Peter