Some thing very odd about Nidalee

So I am playing as as support and I started to get really hammered by with her spear like unreal damage and I start the game with 55 armor and 50 mr so I am chasing her and what Naut (Joke) so I walk into a bush from bot lane into the second bush to the right and when I saw some how she was Naut (Joke) in lion form but she had super inhuman burst of speed like zip to the other side so fast but no one saw that like I did until latter in the game some how I am near the red buff but in the bush were the second turret is from out side our base and me and this other person that was playing as our ADC saw what I saw and what I saw was her phasing through walls and we though this person was hacking and this is not the first time I seen some weird stuff going on with this champion and I am hoping this is Naut (Joke) me losing my head but I am going on youtube and see if some one else has seen this happen.