Windows 10: Acer Laptop Windows 10 slows down extremely when unplugged

Hi!


Today I worked as usual on my Acer Spin513-51 laptop plugged in. Then I went into sleep mode. An hour later I unplugged the laptop, and it took longer than normally to turn on. After it was finally on, my browser was extremely slow. I turned the whole thing off and on again, but it still behaved that way. Other programs worked fine though.


I then found out that everything works perfectly fine when plugged in. When unplugged save energy mode turned off and set to highest performance, my CPU drops from about 2 GHz to around 0.3 GHz.


What I also noticed a few weeks ago was that the fan is a lot more quiet when the laptop is unplugged. When it is plugged in, the fan is really loud most of the time, but when unplugged it is way more quiet.


Any idea how I can fix this without resetting my system? Since I really don't know a whole lot about laptops, a step by step guide would be really helpful :


Thanks in advance!


PS: I also updated to the latest Windows 10 version a few days ago. But the problem really happened from one moment to another.

:)

 

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