And changing the CPU clock could cause issues in games (as indicated by the warning).
Actually, Dolphin's default config is already good enough. If you disable Idle Skipping and set the Texture Cache to Safe, you're going to have a huge performance loss… If your goal is simply to experience Dolphin as close to the original GC as possible, simply setting the IR to 1x and disabling all enhancements should be enough. As others have said, you're torturing yourself and making your experience worse for no good reason.
Actually, Dolphin's default config is already good enough. If you disable Idle Skipping and set the Texture Cache to Safe, you're going to have a huge performance loss… If your goal is simply to experience Dolphin as close to the original GC as possible, simply setting the IR to 1x and disabling all enhancements should be enough. As others have said, you're torturing yourself and making your experience worse for no good reason.