Slow down the automatic rotation in the Acute3D Viewer

Hello, I am building a promotion display for my Photogrammetry service. 4k TV will display 4k videos captured from many of my .S3C files

I am using a screen capture over Acute3D Viewer to create videos of the projects I completed.

The only trouble is the automatic rotation speed is way too fast for my taste. 

I didn't find any option to slow it down in Acute3D Viewer. So I did it in post-production on the video. However, It became quite jerky.

Please, help me to figure out how to get a SMOOTH SLOW video out of my .S3C models.