any HD codec/plugin for BSplayer?
 

so, the thing is, i got couple of HD rips (x264 codec) and BSplayer plays them down very slowly..

i would guess, it plays them smoothly if you have very good PC, but that's not the case, because VLCplayer can handle HD rips just fine.

so, what's up with the BSplayer slow-downs all the time? :?

It depends on the codecs used by BSplayer to play the movie.
Probably with FFDShow you'll have better performances in playing such a video format (which requires a lot of machine power)