Performance of Random number generators of pyroot and random

I was looking to optimize a simple given code that generates a random number ([0,1,2]) that is not in a given list. The random number generator is TRandom3 from ROOT.

def getNumber(noList, randomgen):
    #Fügen Sie hier Ihren Code ein!: 💩
    i = randomgen.Integer(3)
    while i in noList:
        i = randomgen.Integer(3)
    return i

It is very basic and just generates new numbers until an allowed one is reached.

My own optimized code looked like this:

def bessereAuswahl(noList):
    return random.choice([elem for elem in [0,1,2] if elem not in noList])

I just remove all not allowed numbers from my list [0,1,2] and use random.choice to pick one element.

Running on windows 10 I had a performance increase, running the same code on linux I had a performance decrease.

Why is that the case?

Is there a hidden performance penalty for random on linux or is it a performance boost in pyroot?