I'm having same issue as well. It really got better, but still I think it is something that needs fixing. For now I can't use Area Graphs, because it causes CPU to boost. I hope it is possible to handover this CPU work to GPU, that would be amazing!
Here is illustration, at the beginning I'm using Area Graph, ant later I switch to Histogram. Appears that Histogram is cheaper on CPU, as it drops from unstable 100% 1 core usage, to 20-30% usage as you can see. While Area Graphs looks way better, and I got only one, it uses way too much of CPU.
Also I noticed that while using Area Graph, the whole UI for AIDA64 is lagging a lot. I was testing this with latest beta (2023-10-26 build).