If I am talking to a friend and he sends me a video, I see someone in the video, doing something. And I want to write my friend about that person. Should I use the present simple or present progressive?

For example, If that person is riding a bike, should I say he rides so fast or he is riding so fast ?

If I am talking to a friend and he sends me a video, I see someone in the video doing something. And I want to write my friend about that person. Should I use the present simple or present progressive?

For example, If that person is riding a bike, should I say he rides so fast or he is riding so fast ?

I have a question. If I am talking to a friend and he sends me a video. I see someone in the video, doing something. And I want to write my friend about that someone. should I use the present simple or present progressive.

for example, If that someone is riding a bike. should I say he rides so fast or he is riding so fast?

thank you very much.

If I am talking to a friend and he sends me a video, I see someone in the video, doing something. And I want to write my friend about that person. Should I use the present simple or present progressive?

For example, If that person is riding a bike, should I say he rides so fast or he is riding so fast ?