I wonder if its related to Windows Hello? are you guys using that? (the facial recognition) as I have it enabled.
Right after I kill the slideshow I see some sensor processes using up 20-30% CPU
Mine has been doing this also.
I have a slideshow screensaver setup and the fan kicks in within about 1 minute of the slideshow starting and remains on for the entire slideshow. My old SP3 never did this.
I am running all of the latest updates