Hi..
Frame rate doesn't affect the quality of the rendered video or cause loss or distortion.
If you are using MP4 format do make sure the Quality sliders are set to the highest setting.
However, if you want to render without losing any quality at all you can choose either AVI uncompressed video or use Sequence Image PNG. Both formats are lossless and give you the best quality to work with in your chosen editing software.
Peter
Forum Administrator
www.reallusion.com