Going over the information you sent in your post, there are a few things to keep in mind, several of which you did already anticipate.
Yes, the model is slow, that has been shared by many users and is a known situation with the model even on high end gear like the RTX 5090. The research team is working on improving processing speeds in the future as they can. Part of that focus has brought about the Neuroserver feature with hopes that it can help with memory resource management, and processing speeds but it will take time.
The original release of the Starlight model in the research phase was too large to run locally, so it needed to process on the cloud servers, and even there it took a long time for processing to complete. Since then they have released 5 new variants for the Starlight family to be used in different situations and with different source material.
Just like all the other models, there is not one model that will work in every situation and on every video loaded in. Looking at the screenshots you attached, and the information, Precise 2.5 could be trying to overly correct this video, and in turn ends up making it appear worse. This can happen at times when using HD footage.
Have you tried the Starlight HQ or Fast 2 model to see if those produce a more desirable result with this content? Looking at the screenshots, the background details are noticeably sharper and more detailed, but the movement of the face and hair is definitely causing issues with the model, and it seems to be trying to force the facial details back into the shot.
From what I can see, the Precise model is not the right model for this scene and this context, but it has been proven to be very capable in many other situations. Just like the other models have done wonders for other videos, but they can still produce bad results in some situations.
I would be curious to hear your thoughts on what the other Starlight models can produce in those same frames, versus Precise 2.5, and also what Rhea or Proteus can deliver. If you are going to run any more tests on it, I would recommend taking that video and cutting out this scene for a shorter processing time, as in version 1.6.0 there is a bug that is causing the trimming to not work correctly with the Starlight models.
