Originally posted by MossyRocks That makes sense. In that case using a different raw developer would have helped, like RawTherapee with the median option for moving parts. I used
that method for this image and there were moving items in it like the smoke from the plant on the left as well as the water.
I often use pixel shift, developed in RT with the median setting for water. Depending on the length of the individual exposures it can smooth things quite a bit. Of course, it is only four images, so it isn't going to make the water look like mayonnaise unless each image is 0.5 seconds or more.