I'm running dios mios 2.10 with wiiflow and have been experiencing very slow loading screens with Killer7 in particular. On average it takes about 60 seconds or longer to move from one area to the next when I know it should take 10-30 tops. I've not tried any other games so I'm not sure if it...
although i ended up accidentally changing my nand with no way of going back bc i didn't know you needed a gamecube controller to restore it (i have a wii minus/1.1, which doesn't have gamecube controller support)
and if i find the sd card i have my NAND backed up on, i can not only restore the NAND if i solder the right part in, but i can also put my NAND on dolphin, then i can play dolphin online, like PMEX Remix or MKWii Riibalanced