Emulator

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Game Name?
Mario Kart Wii

Game ID?
RMCE01

What's the problem? Describe what went wrong in few words.
Performance is poor with internal res settings higher than native.

What did you expect to happen instead?
To run the same as earlier revisions.

What steps will reproduce the problem?
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1.Delete your shader cache set internal res to something other than native/1x -not sure if it matters but I had done this just before I started having problems.
2.Skip warning screens, press start on title screen select save and select 1 player.
3.Enjoy the crackling audio and sub 25 fps on the next menus and the game.

Dolphin 3.5 and 3.5-367 are old versions of Dolphin that have
known issues and bugs, so don't report issues about them and test the
latest Dolphin version first.
Which versions of Dolphin did you test on?
4.0 1594,1603,1609,1681,1769,1773,1788,1871

Does using an older version of Dolphin solve your issue? If yes, which
versions of Dolphin used to work?
yes 4.0-1603 and below work fine.

What are your PC specifications? (including, but not limited to: Operating
System, CPU and GPU)
Intel i7 3770k@4.5ghz
Radeon 7950
creative x-fi titanium hd
16gb ram
win8.1 x64

Are you using the 32 or the 64 bit version of Dolphin?
64, this question seems out of date.

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)
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This may effect a lot more games than this one but this was easy to test quickly and its a popular one. FPS on this machine at 3x internal res in the menus hovers around 73 in earlier builds. It falls off to about 23 in the latest. D3d doesn't seem to be affected but I haven't had much time to play with it yet. Dolphin settings are pretty close to default except the internal res and fps counter let me know if more detail is required.

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