According to the libretro docs, yes, that folder should be created. However, the same page says that internal Dolphin cheats are not supported, so that step may be useless.

@retropieuser555 I usually test sonic adventure 2 since the slowdowns are seen right at the first level. CPU 2000/GPU 750. There are a lot of framedrops on that downhill. With vulkan those are almost eliminated.

Without vulkan, the standalone version of flycast is faster than the included retroarch version. Cmitu has a wip script if you want to try it. Loading games from ES loads to flycast's menu instead. https://github.com/cmitu/RetroPie-Setup/tree/flycast-standalone

I'm not sure what's up with redream. Overall, it's way faster than any version of flycast but the huge frame drops to the point where it can make the game freeze for a split second makes me go back to flycast.

Oh, right. Sorry I forgot .-.