and the FDC upd765 is still not fully emulated, that's the real sad story
Looks like a floppy controller. Has really nothing to do with general game speed/video performance. Utilizes R-Type 2012 some tricks that current emulators can't do?
Of course the CPC has some good games, but as already mentioned mostly in Isometric oder Vectorgraphic games. And for real C64 art, no matter if game or non-game: