I am making this post in the hopes that it may help whomsoever tries to sync it in the future. I will provide detailed steps for how this movie is intended to be played.
* Download
https://github.com/SwareJonge/Dolphin-Lua-Core/releases/tag/v3.5.1
* Download the modified emulator exe and the scripts from
here.
* Replace the Dolphin.exe file.
* Place the scripts in "Sys/Sripts" folder.
* Open the emulator. Disable Dual core and Idle skipping. Set JIT Recompiler, LLE Audio, Direct X11 renderer. Right click the game and enable "Sync GPU thread".
* Run the game. You will be prompted to format the memory card, do it. Close emulation as soon as it finished writing to the card.
* Run the movie.
If all goes well, the movie should sync atleast for 60000 or so frames. After that it desyncs for me. I suspect that the cause is either some SRAM shenanigans or some emulator setting, but I couldn't pin down what it is.