There is specific kitchen / bathroom paint that is smoother and has some anti-mold ingredients. Makes a huge difference to use the correct paint in a damp environment.

Condensation itself is a function of the air conditions (temperature and relative humidity ie dew point) and surface temperatures. All surfaces should be comfortably above the dew point to prevent mold. You can use a hygrometer to measure the air, and an infrared thermometer to measure surface temperatures.