Try this in manual render settings:

Cast shadows ON
Raytraying enabled
Raytrace bounces 1, you rarely need more
IC can be set to ZERO
IDL ON
IDL quality to 7
Pixel samples 3, or to 4 to 5 for extra hi quality
MSR to 1,
Bucket size : For 64 bit systems :128 if you have lots of RAM, for medium RAM set at 64, short on RAM leave it at 32. On 32 bit systems lower to 16, 8, or even 4.

If you ahve dynamic hair leave bucket size at 32 or lower on low end RAM systems.

Smooth Polygons if required
Use Displacement maps if required
Post Filter size on 3 at sync

 

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!