Most often, when people have made the switch from Pirelli to Dunlop the problem lies in the tyre pressures. The carcass is mega stiff on rear Dunlops and so needs lower pressure to generate the same contact patch > friction > heat > grip. Incorrect pressures also increase tyre wear which may explain yours - but it could also be your right hand?
![Wink ;)](./images/smilies/emoticon-0105-wink.gif)
Target Operating Pressure for the Dunlops are 2.2-2.5bar (front) and 1.8-2.4bar (rear). Give those a go and see if it transforms your opinion. I would go to the middle-upper end of those for road use personally.
My mate couldn't fault them, he only felt them slip when he took the wrong line into a hairpin in a damp session and the bike did a 360.