CPU Spike after couple minutes

Hi everyone,

So it was a hard start for me on PC because 1 week before PoE2 EA I formatted my PC because I'm doing it once a year. Installed Windows 11 24H2 ... Crash/Frozing PC every times trying to play PoE2 so I did a format again last Tuesday to come back to Windows 11 23H2 and now no more crash.

I have a 7800x3D and now the problem is I can play the game but after a few minutes I see in the graph when pressing F1 that my CPU is spiking a lot and make the game unplayable because FPS go 120 to 10 to 30 to 50 to 10 to 120. It's stutter as hell.

I am able to play on my PS5 Pro with a Secondary Sony account that I made only for PoE2 because right now it take a lot of time before GGG staff response to our email.

I am just wondering if someone have solved this problem. I have try closing Chat this morning it was stable for a couple of minutes but I was playing alone.

Thanks for your help !