@chipsnblip Sorry, I posted all the information that I was thought was relevant/actually knew how to provide.

@megafacehead said in Castlevanie SOTN corruption/shaking candles:

Make sure enhanced resolution is disabled.

launch game-open retroarch-quickmenu-options-set enhanced resolution to disbaled.

Exit, relaunch.

Thanks Megafacehead! That worked. It was definitely the enhanced resolution setting. Hopefully this will help someone in the future!