Problem is likely caused by multiple copies of textures, the current version isnt exactly cleaned up.
Would help if you actually pointed out what textures, there's over 4 thousand textures in the pack at the moment. Hard to try and better the pack if we have no idea what your referring to
I state that just to deveopers keep it in mind... i dont feel like pointed out specific textures; i just tough that some areas looked better than other, because of what i was sayin. My advice would be not try to hard to make it sooo HD , but to keep it harmonic; some texture feel like are designed for a game with like the double of geometry. When i play it i might do a list of areas where textures dont feel good to me.