Emulator

Game Name?

Ocarina of Time Wii VC

Game ID? (right click the game in the game list, Properties, Info tab)

NACJ01

MD5 Hash?

fbd31f95610f795d0acd51320f9821d9

What's the problem? Describe what went wrong.

In Ocarina of Time for Wii VC (and Majoras Mask), the game runs considerably slower in some portions of the game than on hardware. In Kokiri Forest, there's areas that drop the FPS to 14-16fps despite keeping a VPS of 60. Market also drops FPS below what you would normally see on hardware. Host machine specs are not the issue because overclocking the CPU to 115% or so makes the game behave much closer to what you would see on hardware.

What steps will reproduce the problem?

Running the game in particular locations will cause this. The easiest one to get to is outside the sword maze looking over the Kokiri Forest.

Is the issue present in the latest development version?

Yes, Dolphin 5.0-15445 (Beta)

Is the issue present in the latest stable version?

This has been an issue for as long as I can remember, 5.0 isn't working correctly when I try to run it but if this is necessary information I can try and figure out why it's crashing on open.

If the issue isn't present in the latest stable version, which is the first broken version?

n/a

If your issue is a graphical issue, please attach screenshots and record a three frame fifolog of the issue if possible.

n/a

What are your PC specifications? (CPU, GPU, Operating System, more)

Intel i7-8750H
NVIDIA GeForce RTX 2070 with Max-Q Design
Windows 10 21H2
16.0 GB RAM

Is there anything else that can help developers narrow down the issue?

Video demo using the practice rom: https://www.youtube.com/watch?v=x8QfMLWMzJc
Note that the top right shows the current number of lag frames detected by the practice rom. This number skyrockets on Dolphin compared to hardware.

Here's a dolphin savestate of the practice rom (v0.3.6, jp) that autoplays the above demonstration with the lag frame counter enabled if you would like to test: https://drive.google.com/file/d/1Dnl64St6jidyRdvi1rhTJHDph9kUP6RH/view?usp=sharing

You can download the practice rom patcher from https://practicerom.com/