On the shooting of Bruce Lee's Jingwu Gate. When Bruce Lee was hitting someone, why did I feel that the picture was about to be released? Or is his fist really that fast?

Yes, Bruce Lee's punching speed is quite fast.

In "The Raptors Crossing the River", Bruce Lee punched and kicked in front of the mirror, so fast that even the sound came out! Bruce Lee punched in the mirror and his coat turned slightly! Because the speed is too fast, it drives the movement of the coat.

Bruce Lee moves too fast to see clearly, so he should slow down when making a movie. During filming, Bruce Lee and Ogada were fighting in the ring, and Bruce Lee had a fly kick. At first, the camera shot at normal speed, but the effect was very blurred, so they had to slow down to achieve "real" value.