I had this issue, it would scroll down so rapidly i couldnt even counter it, the moment something that it could scroll on appeared it was at the bottom, am gonna disassemble it to see what happened but when i activated bluetooth on my phone nest it it became even worse.
So far no suggestions besides disassembly worked for me.
Also at the same time the controller would suddenly not work for games (fine in ps menu) i could bypass it by restarting controller on game start menu.