Let's start from the beginning that caused this problem in the 1st place, I was attempting to load a modpack through smash selector and it wasnt loading, tried to troubleshoot the problem deleted the 1.1.6 smashsaltysd update and tried reinstalling it. Nothing i tried work even tho it was really just a file i had in my saltysd folder that caused the game to not load. I tried everything to fix it but only made it worse or so i thought . 3 days of a worthless game that wont work and there's nothing i could do. But out of determination of finish my smash 3ds modpack bcuz i put to much time into it. I keep trying until today. Exact steps i took that fixed the long loads, crashed boot up and wierd in game slow loading times. (I turned off code.bin option in the configuration of luma, with the Clock+L2 or whatever its called for new 3ds, I deleted smash all together updates dlc smash selector, anything smash related formatted the game using the xyab method, used a backup of all my files from when the incident 1st happened, redownloaded all the smash material updates, dlc , smash selector, reinstalled the 1.1.6smashsaltysd update, and turned on luma code.bin, loading smash selector and loaded my modpack through there and loaded smash and it worked idk what exactly made it work but this is what made it work for me