Castlevania The Dracula X Chronicles US

[Foffy]

I am not sure if the issue I am having is related to this particular game, but when I use the XBR filter, it seems to work for a lot of the game elements..except the character you play as. It's very jarring to see everything except Richter and Alucard using the filter, and that those characters look absolutely pixelated. Is this an issue with filtering in the emulator, an issue with the game, or an issue with one of my settings?