Indeed, please send us a screen-recording of the file that you have sent. You can either send us the wetransfer link or any link that we can immediately download.
Hi. I may be able to help you on that. Did āframe generationā is enabled on your scene ? Iām working with a RTX 4090too, and DLSS4 frame generation is killing the framerate, making it really stuttering. Turn it off and everything is smooth again.
It may be wise from the dev team to advertise a bit more about that by the way. Dlss4 support (for this functionality) is, for the moment, really not good and should not be available
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That did it. Night and day on performance. Thank you very much @jeanthiriet !
I second your suggestion on advertising this as it has to be happening pretty much to anyone/everyone, regardless of file size.
thank you as well @Clov , I appreciate your efforts.
Hi @jeanthiriet
Wow, thank you so much for sharing this information. I will be forwarding this to our team and see what we can do to improve with this setting enabled. 
Clovis, Here are my system info
