Say, by sending some value to something inside /sys/.../cpu or the likes. I have already aggressively debloated the tablet, but I like to experiment and I am not afraid to destroy the tablet since I bought it for 150 bucks at sale. Or pehaps there is some Magisk module that can do this?
The tablet is a Samsung Galaxy A9+.
Interesting. I’m sure heat and battery life are noticeably affected. If not very noticeably, I think significantly anyhow I recently got some Galaxy Note 10" 2014 units, and I am trying to get the very best out of it. I hadn’t even known about them. The early Galaxy Note phones were terrific, but still a phone size. Then there are the Galaxy Tab models which basically deals with the size issue but not really designed specifically for what I wanted. This thing is just a very enlarged Note 4. On a couple of them, I put TWRP and custom ROM, while on one of them I kept the stock ROM with its last update, bringing it to Android 5.x. It runs the old school Adobe PS Touch, Snapseed, Sketchbook, S-Note, and a handful of other graphics apps. They all run beautifully and it’s my almost-perfect art device. Rooted and debloated, of course. I’m gonna see how these modified units do on eBay.
I think my long-winded rambling point is that rather than kill your battery and possibly cause severe wear on your device, maybe find one that can use a custom ROM, or at least Root and optimizing by shutting off tons of bloat.