Comparison time with time of picking up the flower.
My last uploaded movie: 5296 11278 (level 3 first fall lag: 12856)
This movie (with feos' level 1): 5286 11268.
Note that this route doesn't takes the "better" Y pos by boosting differently at ~8758 (bird at rope). Taking it would make it 1 frame slower due to lag. I've already got so bad lag frames after the 3 rings around 9332.
Level 3 started with same subposes so it's 1 frame slower than the guy. As far as I see, it's only possible by losing 1 frame and tweak subpos at boss fight 1.