There is a discrepancy in the info between the Media Item Properties(MIP) and above the item.
As far as I understood reaper limits to 100x playback rate. Ok, I am fine with that, although I don't see a reason to limit. EDIT: (oh testing I realize it might be because of processing power, and it is better for the user to render and go over if needed, fine it is really ok this limit)
If I change in MIP above 100 the item still in 100 but it show the number I input, without telling me that it is not the number I input.