Hmm, I guess I haven't had that problem. The remake seems just fine to me, but, that's just my own opinion. It's probably been awhile since I've played entirely thru the original, so, maybe that's why I'm not noticing. Plus, you've probably played thru the original alot more then me, so you have a better memory of how things were.
As for the emulation, I didn't do a side by side comparison, but it still seems really good. Didn't notice anything wrong with any of the sounds. I agree that I didn't like that they used the new intro voice. I liked the old one for the original game. Some have said the cinemas in the original, the voice & music is a bit off. Not sure if that's an emulation problem or not. Maybe we'll see when it gets ported to the VC how that is emulated.
I like the music in the remake, but, not as much as the original. And I don't like that Den isn't used for Stage 7. So, I changed it so it would play the PCE's Den during 7, which is a nice feature. I still haven't gone in to beat Shaft, & Dracula's 3rd form. My personal opinion is that the graphics looks great, though, I would've prefered 2D, with some poly's added in for depth. That would've looked alot better IMHO.