In a German forum. Here's a post:
http://www.maniac-forum.de/pxmboard.php?mode=message&brdid=1&msgid=3763354
Conker has a terrible framerate according to user "mars" while Jet Force Gemini runs "better".
According to people in that thread the N64 emulation in Rare Replay is bad compared to PC emulators,
theres videos on youtube for most of the games. conker does have problems it seems. jet force and blast corp seem fine though.