Disapointing performances

[JMC47]

You don't understand, a PC game like Witcher 2 is nothing like an emulator. Witcher 2 uses your GPU, which will make the computer very hot considering how much they tend to vent out. Dolphin will mostly use your CPU; which may not be as hot to you, but once it reaches a certain temperature, your PC will start throttling the CPU speeds.

[Bunansa]

Yes I understand but I admit it was a bad example. The fact is that with the same processor, other users just run fine ! My problem is that my processor shut down to 1.2 GhZ even if its temperature is 60° :/, that's what I don't understand. When it stays even at 2.4Ghz games run fine but sadly it stays like this just some seconds.

[mbc07]

Hmm, if even plugged to power and without overheat you can't get to a steady 3.2GHz, something is really wrong. Verify your OS, you may have some OEM program doing this. Check also your power supply, it may be faulty, IDK...

[Fiora]

Have you tried using ThrottleStop? It can help force your CPU to a higher speed if there's some incorrect throttling going on.