New Ps4 slim loud?

I have a question and although my ps4 slim well not very very loud but it föhn einwenig and for a 2 weeks it comes to me a little run before wanted to ask if this is normal

(it will play loud after 30 minutes)

This is a slime is normal. Is no place for a quieter box what can help. Make her in the air to the window in the shade