This is a list of all accepted feats. For those who say statements over feats. Statement can be disregarded enough evidence from feats exists.
Accepted Feat list:
Maki blitz Ogi (
Hypersonic)
Maki catches bullet (Assuming she is further back than point blank (
Supersonic+))
Itadori (Beginning of series) blitz curse (
Subsonic+)
Stone hand speed (
Hypersonic, assuming 0.08 (benefit of doubt)
Supersonic)
Maki catching bullet point blank as she did High Hypersonic+)
Speed of tree appearing (
Supersonic)
Speed of jobber people who can't perceive Maki's movements (
Subsonic+)
Geto casual speed(
Supersonic)
Calcs waiting evaluation:
Sukuna (3 fingers) speed (
Supersonic+ to
High Hypersonic+) Scales to Shibuya Toji and Megumi as Shibuya (who would scale to other like Itadori and Nobara) Toji was compared to be as fast as this Sukuna and Megumi kept up with that Toji)
Itadori dodge PB (
Subsonic to
Supersonic)
General feats and not calced yet feats:
Itadori perceiving faster than sounds Choso's PB (
Chapter 101)
Maki reacting and cutting Maki's bullet in half from only a human and half to slightly less two Mai lengths away) (
Chapter 42)
Coat rack dude reactsand blocks sound attack (
Chapter 52)
Young Geto blocking bullets (
Chapter 73)
Finger bearer(FB) in prison blitzing Itadori and Megumi (megumi and itadori were in the middle of the room so FB travlled room radius before they could perceive (Megumi fights a stronger and faster one later)) (
Chapter 6)
Itadori gets blitz by FB who was in the middle of the room (Same room ^) while Itadori was in the middle of the room. (
Chapter 7)
Sukuna (two fingers) blitz FB (Same FB blitz Megumi and Itadori, who is Subsonic+ via feats) (
Chapter 8)
Itadori punches faster than Grasshopper as its spike is at point blank range (
Chapter 87)
People with sound attacks:
Principle of Kyoto (Sound attacks from guitar)
Urahime (Cursed technique involves singing)
Inumaki cursed speech (Speaks)