Excessive CPU and GPU stress. Code optimization done incorrectly?

On my 13700 I see higher CPU utilization but actually lower temperatures than in 2020.
I think 2020 ran 1-2 cores so high that it was hotspotting whereas 2024 spreads the load across more cores, which run at lower temp and spread heat more evenly across the die. This was a pleasant surprise for me. I also use frame limiting to avoid needless stress on CPU and GPU.