Tonight (Morning?), I finally traced routines enough to track down the speed index for Christoper in Belmont's Revenge. He now moves roughly twice as fast, though I didn't mess with the rope climbing speed (I think it actually makes sense to be slow doing that).
Despite this being released after the CV - Legends hack I did, I've been working on this for like two weeks now (My first foray into the world of z80 hacking).
Anyway, on to the hack.
There are three patches in the archive: One for the US Gameboy Mono game, another for Konami Collection 3 (A Super Gameboy enhanced compilation of GB Konami games), and finally one for Konami GB Collection Volume 4, the European GBC enhanced compilation.
So with this, the Legends hack I did, and hiro112's Castlevania Adventure hack, I believe all the Gameboy CV games no longer suck.
Enjoy. This'll probably be the last time I touch z80 again.