Vsync + FG + fullscreen = max cpu temperature limit

Hey.

Just starting this game, and as I tried to optimize it the best I could so it could be smooth and gorgeous, I noticed something.

My rig :

- RTX 5070

- Ryzen 7800x3d

- 32gb 6000mhz DDR5

I activated frame generation on auto, and since I had some screen tearing (seeing you can't enable vsync in game when FG is on), I forced it in NVCP. No more tearing although I noticed that my CPU was running at its temperature limit constantly (85c), while only being at 30-35% usage. Even the wattage wasn't at its limit, it was around 47-55W while I set my limit to 75W.

It didn't matter what graphic settings I'd set up, even on the lowest, when vsync and FG were enabled, Cpu was running at 85c constantly.

After pulling my hair out trying to figure how to get frame generation without screen tearing (tried fps limiters etc), it was resolved by switching to borderless windowed mode. As soon as I applied, my CPU temps went down from 85c to 55-60c.

So it seems, for a mysterious reason, that when you have FG + forced vsync + fullscreen mode all together, my CPU runs at its thermal limit. But when one of these is not enabled, it goes down to normal temps. And this is with whatever other settings I'd apply.

So I guess it is "resolved" then, but I'm still curious, why ?

I haven't seen this issue with other games.