my downstairs neighbour always hit on the wall over small noises in my room !

they did this over small things like when play on my switch ( the buttons and controllers makes small noise ) and when I use my laptop ( which is very old and the fan gets a bit intense at times. ) I don't even put loud music or videos as I always put my earphones to listen to what I put on the computer ! why did the ones who made the building made the floor so thin !? seriously, I can't even use my laptop without the neighbour banging on the wall !