Pokemon HGSS Freeze

[Kttulu]

Let me start off by saying I have read every thread on here regarding this, and can play the game normal without any freezing/crashing

my question however is this:
I can play the original HG file fine without freezing, but if I try to play a modified HG version, even using rudolph's patch, it'll still freeze
I like editing trainers and what not to make the game more difficult, but whenever I do, the game goes back to freezing

any ways around this?