Check your computer for spyware, viruses, trojans, and keyloggers; it sounds like you have something nasty taking up a bunch of system resources. The fact it's higher priority than the thing that is taking up tons of CPU power (Dolphin) implies it's less than reputable. That's contrary to how operating systems are supposed to work.
![[Image: RPvlSEt.png]](https://i.imgur.com/RPvlSEt.png)
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