I have played over 200 hours of DOS2 Definitive Edition. I have always run the game on high settings and have never had an issue despite my set up being fairly old. On my last playthrough I reached the Undertavern and suddenly my performance tanked from 200 FPS to between 5-40 FPS, spiking up and down between these two points. Upon investigation, my GPU use would start at around 40% and then spike to 99% after a few minutes, potentially causing the issues.
I have tried to fix this but have not had any luck. I relaunched the game and it ran fine for about 2 minutes before the performance tanked again. I tried lowering the settings right down to very low, updated my drivers, disabled cloud save, disabled hardware accelerated GPU scaling, capped my framerate to 60FPS and cleared all my other saves on the device. This did nothing to help. I also worked my way through the solutions on a thread on the Larian Studios Support Page titled 'Performance issues' but did bot see an improvement. I started a new game and the same thing happened again on the tutorial deck, running well for two minutes before tanking.
Do you guys have any idea what might be happening and if there is a way to solve it? Would really appreciate any help because I would love to be able to keep playing this game.