It has reflexes and speeds that probably exceed 1,800 miles per hour. A punch that fast could be lethal, and it is the default attack of many Stands in the series.
So Jotaro was in a weakened state, causing him to not probably be able to move at the speed of light, and Jotaro moves at speeds of about 833.7 meters when he caught the bullet (figured out by Darthplokoon2, thanks bud.)
Super Speed: Star Platinum boasts phenomenal speed. It was able to intercept a bullet fired from point-blank range, briefly contended with Silver Chariot (whilst it was using Anubis), and is stated to exceed the speed of light.
With a weight of 100 kilograms, and a punching speed faster than lightning, Star Platinum and Stands with similar physical strength can strike their opponent with 475,000,000,000 Newtons of force.
The World can punch at the same speed at Star Platinum, whose punches have been stated to be light speed/faster than light speed. It's not actual light speed, more like anime and manga light speed, kind of like Kizaru from One Piece.
9 Crazy Diamond Is Potentially The Fastest Of The Punch Ghost Stands. While most of the humanoid Stands have equal power and speed, Crazy Diamond could be the fastest of them all.
He's fast and can punch hundreds of times a second, much like the other JoJo protagonist Stands, but it's not too fast for A. Range: Downgrade from C to D (Or Upgrade from E to D if going by manga).
So, all in all, Star Platinum has the ability to harm Goku up to the Cell Games, where his Time Stop (Which Goku can't escape at this point in time) would make Star Platinum more than equal.
Star Platinum is a close-range Stand with a range of two meters.
Jotaro Kujo's Star Platinum Stand returns in "Diamond is Unbreakable" as one of the fastest Stands in existence. Star Platinum can throw punches that exceed the speed of light and render an opponent's attacks useless.
As stated by Pucci, Joester's weakness lies within their bloodline. Jotaro's care for his daughter was being exploited by Pucci, which shows that Pucci could not face Jotaro directly because Jotaro is still a respected stand user.
According to DIO, the World surpassed Jotaro's Star Platinum in terms of strength and speed. Both the Stands are akin to each other. There is not much difference between the two of them. But, it is fair to say that The World has more potential than Star Platinum.
Jotaro Kujo is undoubtedly the smartest character in Stone Ocean. He was able to discern the abilities of his opponents after just taking a look at them.
A lot of his combos lead to hard knockdowns where Jotaro's true potential lies, as he has some of the best okizeme options in the game. His only major weakness is the fact he has no long-range attacks.
Aerial Movement: An ability which was most likely discovered after Jotaro viewed DIO to be flying in unison with The World, this ability also allows Jotaro to levitate in place, perfrom incredible leaps into the air and most importantly fly.
Star Platinum outshines most other Stands in the series in terms of speed and power. The Stand has incredible precision and eyesight, which allows it to carry out attacks that are nigh impossible for others.
Star Platinum Requiem is a requiem version of Star Platinum that was formerly obtainable through an Easter Egg, but that method was removed. It was formally obtainable from Stand Arrows. This stand has an identical moveset to and basic attack speed as Star Platinum: The World, but has higher damage.
This grants Star Platinum the same potentially limitless ability to rewrite time and reality itself, the only true limitation being that it requires the use of its hands to do so. Despite these changes, Star Platinum does not gain an appearance change, unlike The World Over Heaven.
Star Platinum uses fire breath against his opponent, damage is unblockable and will do 1 damage per 0.5 second, this move lasts for 10 seconds, doesn't give stun and immediately cancels if the player takes damage.
King Crimson's ability gives Diavolo the upper hand against DIO and his Time Stop. DIO can stop time for up to 9 seconds so theoretically, Diavolo would just have to use the precognitive ability of his sub-Stand, Epitaph, combined with King Crimson's Time Erasure to defeat DIO.
Dragon Ball Z: Kakarot estimates that Goku's power levels are around 10 billion as of the Babidi Saga. By applying the same formula, this means that Goku, without Instant Transmission, can travel 22.321 trillion MPH -- or 33,314 times the speed of light!
He is considered by a vast majority of the fans as the worst JoJo. It is mainly due to the reason that Giorno is a stoic. He displays stoic behavior far too often to the liking of the fans. He doesn't engage the emotions of the viewers which is a problem.
1 Couldn't Beat: Kaiman
One of our protagonists, Kaiman, has a, you guessed it, resistance to magic, making him a good counter to Giorno.