Processing happens on a single core at any given moment
Processing happens on a single core at any given moment
Odd performance in an old 2009 Intel dual-core system is common. Work units are slow and switch between cores frequently, which can indicate thermal throttling or hardware issues. Temperatures are normal at around 65°C, but persistent switching might point to overheating or instability. It could be a sign the laptop is nearing the end of its life.