I've got a strange problem with my computer:
Since a few days I notice that it sometimes is much slower than it should be. When I open the Task Manager, this is what I see (sorry for the German):
It seems as if the CPU is limited to 0.98GHz and that's why Task Manager shows only 40% usage.
It stays this way even when I do a CPU stress test:
The only way to get the CPU back to speed is to reboot the computer:
Although I think that even this is not the core frequency that it should have.
All the relevant energy settings are set to the maximum when it's not on battery:
As you can see in the screenshots from Intel XTU, the temperature seems to be perfectly fine.
What could be causing this?
All I can say is that it worked perfectly fine until a few days ago and I did not change any settings.
I'm using Windows 10. You can find more information about the hardware here.
"Auf Akku" means "on battery" and "Netzbetrieb" means "on external power".
powercfg -ENERGY after closing all programs shows no useful information other than "high cpu usage".