Download HWINFO 64, it'll give you more information than iCue will.
https://www.hwinfo.com/download/
Use the portable version because it's easier.
Then one the game loads, go back to hwinfo, click the clock to reset the details, then play a round for maybe 5 minutes.
Alt-tab back and screenshot the sensors display. Make sure you scroll down to also get the GPU info with additional screenshots.
What PC case do you have? The 13900k is 3 years old, when you installed what I'm guessing is the corsair AIO was that three years ago as well? Or more recently. Have you cleaned the PC fans & radiator in a while?
What resolution is the game on? Are you using DLSS?