I have the NI 60s, 70s, 80s, Modern, and Studio 'Drums' & 'Drummer' software.
I run them in Kontakt 5 Player as I don't own the full version of Kontakt.
The newer, 'drummer' versions install alongside the older 'drums' versions, so the new ones don't replace the old.
In my experience, the newer 'drummer' instruments with the grooves run more efficiently than the other, 'drums' versions.
So if your experience is like mine, the new ones should be easier on your computer.