What the dampers are set to will not effect the level of roll produced by any corner just how quickly it is achieved. (taught well by Plans

)
Have a look at what your ARB is set to you should have it on full hard or 5th hole counting up the bar. If its softer setting that maybe it.
I would highly recommend having a play on track with the Nitron settings as a rule;
Stiffening the front or backing off the rear will produce more grip at the rear this will help if the car is too pointy
Backing off the front or stiffening the rear will produce the opposite effect making the back come into play.
Turning up both will make the car feel a bit more controlled although you can loose grip if over done.
Most find running a soft ish setting a fair bit quicker due to grip levels.
A good trick for the wet is softening the rear so the car is a bit more
understeery - I found I was a lot quicker if i had the confidence to push.