Nope ......
closing and opening the shutter at 1/160000 speed for one time and writing down the image file + processing of that single frame image
&
capturing 100 frames per second and writing it down + processing is very different.
(The shutter used in video is an electronic shutter. The sensor simply discharges itself at regular intervals.)
It all comes down to the sensor design.
It is difficult to get higher speed, higher resolution all at the same time in a camera sensor.
If you have a dedicated separate sensor for photo and video then what you said is possible.
It needs tonnes of processing power also ...
You simply can't get the best of both worlds in this case.
Last but not the least our storage also needs to handle those insane read/write speeds.
small correction