Polygany

I am M33. I stayed a virgin till I got married at 32 years old. I live in Europe but back in my Muslim country, my friends are getting two or three wives and here they say one woman isn’t Enough for a man. And it’s actually culturally and religiously and now I am thinking about getting a second wife, my wife doesn’t like the idea but it’s culturally acceptable. She will be upset at the beginning, and later will be fine with it.
So am I taking the right decision or are there any downsides?