1. For me, FBA emulates this game very badly. Although most of gameplay remains uninjured, lots of programmatic glitch occured while watching. There are ugly sound effects which tortured me all the time, music's pace is often faster than it used to be, and some of blackouts during cutscenes are missing. If you can emulate this game well and know about this error, please notify me how to deal with it.
2. I'm not sure whether the world order you've took is the fastest route. Would you tell me about it more?
3. Why didn't you do it with 2 player?
1. The sound issues seem fairly emulator-specific. GGPO-FBA, my personal emulator of choice, doesn't seem to suffer from the issues that FBA-RR does.
2. Honestly couldn't find any other replacements which improve it, although I'll go back at a later date and check through every possible world order again to see if there's any of the new tricks and whatnot which might change the speeds.
3. I run this game RTA, so I made this to set goals for myself and learn some new tricks. I may eventually create a 2-Player TAS, but I vastly prefer 1-Player, so it was my first goal.