I just improved previous version by 7 frames.
(Sorry, it seems that I had linked a wrong URL. I modified it.)

cf. #2124: klmz's GBA Castlevania: Harmony of Dissonance in 11:13.12 I tried discovering a new movement like Julius's one that takes the place of sliding. But I failed.

Until entering the castle
No improvements. Previous version is so solid that I could not improve there.

In the entrance
I saved 4 frames by using spin attack before whip-launch glitch.

While warping
Somehow I saved 1 frame in the clock tower.

In the previous room of Dracula Wraith
I saved 1 frame until getting on the elevator.
By the way, I manipulated luck while spinning.

Kischine-ryu Ougi!
I saved 1 frame by the luck manipulation.

Thanks to TASers of CVHoD, especially, pirate_sephiroth, Comicalflop, zggzdydp, Deign, and klmz, for pioneering and developing the amazing route.
And gocha's Lua scripts helped me to manipulate luck. Thanks, gocha.

ﾑｯﾑｯﾎｧｲ