Thanks so much for the valuable input! 😊 It's already on pretty "airy" stand ( https://www.kjell.com/se/produkter/kontor/hemmakontor/laptopstall/plexgear-laptopstall-i-aluminium-p62630 ) and I regularly use compressed air to clean it. Once a year, I even open it up for cleaning. 😁 As for the player, I use mpv with the switch --hwdec=vaapi to enable hardware decoding, but it's an old T480 which I upgraded with 32GB RAM and a 1TB m.2 SSD. I'll check CPU usage later.