Sorry I'm not a big expert in the field of optics, but I am aware of our cameras being used to perform adaptive optics and lucky imaging.
Adaptive optics in particular requires very fast framerates and low latency to make rapid adjustments to the mirror's shape to compensate for the constantly changing atmosphere. It's really amazing that it's possible at all! I believe this is the method used here, though I can't say with certainty.
Lucky imaging is more akin to a brute force method, where you acquire lots and lots of images quickly and process the best ones when the atmosphere was being particularly cooperative at the time and not distorting the image very much.
Again, there are lots of experts out there on the topic, this is just my simple view into it.
Adaptive optics in particular requires very fast framerates and low latency to make rapid adjustments to the mirror's shape to compensate for the constantly changing atmosphere. It's really amazing that it's possible at all! I believe this is the method used here, though I can't say with certainty.
Lucky imaging is more akin to a brute force method, where you acquire lots and lots of images quickly and process the best ones when the atmosphere was being particularly cooperative at the time and not distorting the image very much.
Again, there are lots of experts out there on the topic, this is just my simple view into it.