Mario Kart Wii runs extremely slow on decent PC.

[Gazotey]

Hey all,

I've downloaded the dolphin emulator so that I could take Mario Kart Wii with me when traveling using my gaming laptop.
Problem being: it runs extremely slow. The sound is laggy and sounds very, very distorted. The graphics run about half as slow as they should (on steady 30fps). The slow game speed might be the cause of the distorted sound.
I'm quite new to emulators, but I'm pretty sure that if MKW could run in dolphin, my laptop would be able to handle it.
The lagging happens during the startup of the game while navigating the menu's and while playing levels. So basically everywhere.
After fiddling with the settings and following guides to configure dolphin optimal, the lagging does not improve.
I've reset all settings to default, with no visible changes to the lagging.
To check if there was a bottleneck in my hardware, I monitored my GPU, CPU and RAM usage while "playing" the game. It appears nothing gets used over 30%. I have confirmed that my dedicated GPU is being used, and not my integrated graphics.
Any assistance in isolating the issue would be greatly appreciated.

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Specs of my laptop:
Operating System:                           Windows 10 x64
Processor/CPU:                                Intel® Core™ i7-7700HQ @2.80GHz, 4 cores
Video Card/GPU:                              NVIDIA GTX 1050
Memory/RAM:                                 16GB DDR4
Dolphin Revision Currently Using:   5.0 x64
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[JosJuice]

If it's running at exactly 30 fps with no fluctuations above, the problem is that the performance is being throttled. Make sure to set your computer's power settings to High Performance.

And yes, slow game speed leads to slow sound.

[Gazotey]

Thank you very much for your advice. I changed the power settings, which were on balanced, to high performance. I did not notice any change in performance (it says 30 fps, 50% in the title bar).

[JosJuice]

Hm, I suppose there's some other setting throttling it then, but I'm not sure which one... It should be possible to get Mario Kart Wii to run well, because I have a laptop with similar specs and it runs at full speed for me.

[Gazotey]

Well, thank you very much for your help anyway

[Gazotey]

I have found the problem. My NVIDIA control panel was once again reset, making the integrated graphics the global default. It has probably reset after a GPU driver update. Now that it runs on my dedicated GPU, it runs like a charm! Thanks again for the help.