Hi Joules
I’ve used the Garmin Light V3 module, and the data sheet claims update rates up to 650 Hz with the trade-off between accuracy and speed.
I’ve not done much experimentation with configuration parameters, but out of the box I think I was getting about 120 points per second with a flutter of around plus\minus 3 cm on a wall 2 m away. In terms of scan speed, it’s really whatever you want, with the compromise between resolution and capture time.
David