Rapture Pro - any enhancements of sound engine and resample algos?

Hi
Curious about if RP give any improvement like option for oversampling or other enhancement and options for resample algos.
 
I have these strings I love in DP - but they give very much a haze kind of if using an octave up.
It seems to me they resample the same samples too many times, or something.
Try the biggest string library 133 mb and run a chord in a higher octave(not extreme like C5, just C3).
 
And DP have one options, if to use sinc for rendering or not.
Any more of that in RP?
 
So in short - will my strings(and other stuff) from DP 1.5 sound better?
Any options for that?
 
Thanks.
 
EDIT: Audio samples for same midi run through DP alone, and inside Metaplugin with oversampling.
http://www.larsmusik.com/dp1.wav
http://www.larsmusik.com/dpmp1.wav
 
Already doing this you can hear background harmonic beating diminish quite a bit on the upper G Major.
On my keyboard it's a G2 Major I,III,V, and G3 Major I,II,V
It's the full strings 130 mb preset in dp.
 
EDIT2: My project is running 48k, and MP oversample to 96k - so FYI.
 
If this can be by default, and maybe other improvements - it's a buy from me.