Not sure if you already noticed, but since I have pushed my tablet to the limits of its processors, I always notice the thermal throttling.
Since Heat Dissipation is completely passive, and uses in part, the frame of device for it, it´s not so efficient.
Have anyone already tried to use those magnetic radiators powered by USB that have peltier? I see that people has been using those lately on Ipads, smartphones, etc.
I´m willing to buy one of those and just put directly on the top right part of device where the mainboard is and where it heats the most to see if thermal throttling reduces.