iPad Overheating when using Freeform

I didn’t break out a Bunsen burner and calibrated probe to measure the device’s exact Kelvin output.

What I do know is that I can feel the rise in heat through the somatosensory thermoreceptors in my fingers. As the device heats up, the screen dims, and within a few minutes the Freeform app closes on its own. If I reopen it immediately, I can work for another 30 minutes or so before it shuts down again. This cycle repeats until I give the iPad a break to cool down.

Have you dealt with this before?