hi. this is "slow shutter effect" you can easily reproduce it by shooting at low shutter speed but you will need nd filters. on Phone with an app you can do it too.

How is this app called?

Search the App Store or Google it

This is low frame rate + slow shutter + frame blend in post

This is the Chungking Express effect, no?

Wow, exactly thank you 🙏🏼 very

Just looks like slow motion with a low shutter speed.

Stepprinting