How I didn't thought of this earlier... basically the game only spawns when you reached the spawnable object's X position AND moving to that direction.
So going left at those frames when the game wants to do this, you can delay it for 2~3(4?) frames.
Saves time in certain situations (edit: because interrupt juggling freezes object positions) (3-1 start, maybe 1-1 start?), it's time to start the fucking TAS from the beginning... AGAIN =D