Just after a quick, very quick look see, I still find quite a few silent patches, only checked out Galbanum Piscis, they all work fine in Rapture just not Rapture Pro, I have all Dim Pro and Rapture stuff installed to the default locations, Rapture Pro I installe the multisamples to my H drive. In hind sight I would have preferred Rapture Pro to have not been backwards compatible with Dim Pro and Rapture, a feature which at the start was a plus for me, but now, not so much.
Haven't had a chance to check out the wildly different volumes of some of the Rapture Pro factory patches that existed, one or 2 of which were barely audible, can't remember which ones they were now, so would have to go through the lot, which I don't have time for right now.
I never had any problems other than silent patches, which I still have, never had the slow loading or anything, haven't used Rapture Pro since about a week after release, so it could be imaginitus, but if anything it is loading slower now, not extremely so, but I checked some of my older posts here about it, and it indeed does seem to be slower for me.