It would appear that Adobe have messed up big time with the latest update for Lightroom CC i.e. 2015.2.1 in that it has a completely new importing screen and does not remember what develop preset that you have used previously and even when you do select a preset that includes the camera profile and Remove Chromatic Aberrations you find that this has not been applied to the imported issues.
Lightroom 6 now appears to run considerably slower on machines including last years model iMac with the i7 processor and fast graphic card.
I would seriously have to question Adobe's Quality Control.
As Secretary of a Camera Club currently as it stands I cannot recommend LR6 to members. In the speed stakes LR5 outstrips LR6 by a long way.