Have you tried under-volting it? I’ve done that with my 3090 as TSW was consistently utilising 100% of the card and pushing the temps into the mid 70’s. It now runs cooler, quieter and can sustain higher clock speeds for way longer. Uses about 30% less power too.
I have also done this with my 3060ti FE. Mainly because it ran hotter than I liked, and turned the bedroom into a sauna. Benefits include a massive power saving.
I have, it works fine, in other games, where the game also looks good and/or runs well, TSW does neither Keep in mind that I have a 3440x1440 monitor
Not extremely needed but as implementation is not harmful would really be a nice feature. And optional, by the way. Nobody would force you to enable it.
A 4090 doesn't help an unoptimized game. There is lots of scenarios in TSW where the FPS are CPU bound and the GPU doesn't get 100% of workload because of this.