The repack files do not affect performance—they are installers, not runtime patches. However, make sure your repack includes the , as it fixes:
Emulators like and Sudachi cannot read physical cartridges. They require decrypted or dumped files. XCI is easiest for emulators (just open the file), while NSP requires installation within the emulator's virtual NAND. paper mario la puerta milenaria switch nsp xci repack