Before the PC used 50% load spread out across all the cores, which lead to slightly lower temperatures under stress during long duration (often I leave it on for many hours unattended). Now, the PC uses only 50% of cores, but all cores are on 100% load. As far as I can tell what it is essentially doing is simultaneously multithreading. Is there a way to prevent this from happening, as I still want to get the boost from smt, but don't want all the same cores to always be under a heavy load, as temperatures are around 6-10c higher than normal this way.