Go to mods, make there folder like "Music'' or whatever. Inside folder "romfs", inside "sound" and there put .pck. So it will be "Music\romfs\sound\Music.pck" in the mods.
For me Citron have slightly better performance - stable 60 (except 40 fps bug with some cheats). Sudachi have 45-60 in the City. AMD 9 3800x and 3090. So I’m on Citron with only 60-60-30 and it’s perfect for me.
Soooo. I think this is it. Some cheats make game drop fps after a while... Disable only one cheat i had (All fashion unlock) - and no drops. Im satisfied now ^_^
Strange. I have no other mods or cheats inthat post... Or maybe... Its messing up with some others cheats, cuz i have only All Fashion cheat. Will try to disable it.
With that its not just unstable... its barely hit 40 fps lol =(
upd. Changing from bicubic to amd fx and antialiasing to fxaa hit nearly stable 60. But picture not so juicy now, think i can accept this
As mentoned here some posts above, same problem for me on Citron (never tested on Ryu). All works perfectly... about one hour give or take. Then suddenly fps drops to 40-45 and a bit later stucks at 36. Dunno if its mod related or any leaks in Citron, but here it is.