listen, i already tryed deprotectic that map (Thanks to tutorials of this Forum

I already did it after i deprotectet (but like i said, its messed up now) and it helped fixing the lagg.
The map got 1 Model which make the whole game lagg when you choose this hero (Iam talking about Naruto Ninpou - Char: Jiraya).
I wanted to change that, nothing more! So is there a way to just edit a MDX and BLP WITHOUT complety Rebuilding the map ?
Greetings
Hargut