Hi sirdaniel !
Thanks for your reply
For the FPS, I've used the fps calculator form GeForce Experience (in green on the down left corner), the dolphin indicator (on the top of the fram )and I also tried with the option in the settings of Dolphin I got the same fps.
Here a picture : https://zupimages.net/up/21/05/rjkm.png
I have recently tried to update all my drivers but I still have the same issue. I also tried with almost all the different of Dolphin but nothing changed (I tried to use vulkan, openGl and using my GPU each times when it was possible).
I'm not using a laptop so I dont know if it's possible to enable the "low power mode".
If someone find this Thread and have the same problem than me, I could advise him to use Cemu in order to emulate Twilight Princess on a Wii U instead of a Wii if there is no other alternative.
Thanks for your reply

For the FPS, I've used the fps calculator form GeForce Experience (in green on the down left corner), the dolphin indicator (on the top of the fram )and I also tried with the option in the settings of Dolphin I got the same fps.
Here a picture : https://zupimages.net/up/21/05/rjkm.png
I have recently tried to update all my drivers but I still have the same issue. I also tried with almost all the different of Dolphin but nothing changed (I tried to use vulkan, openGl and using my GPU each times when it was possible).
I'm not using a laptop so I dont know if it's possible to enable the "low power mode".
If someone find this Thread and have the same problem than me, I could advise him to use Cemu in order to emulate Twilight Princess on a Wii U instead of a Wii if there is no other alternative.