Drop low fps with gpu Nvidia (but not amd) in some Mods effects

[mcdyn]

I recently went through a rather strange situation, I don't know if it's exclusively the fault of the recent Nvidia driver, but it's something that many might not believe...
Playing Skyrim with over 100 mods, among them are Fill Her Up by modder baka, and Sexlab Deadly Drain, all from Skyrim SE.
These mods work perfectly well with these effects at the end of sex (a magical effect) and when you use the FHU cum expulsion hotkey using my old AMD RX 6600 GPU, the game runs well at 60-80fps.

Now that I've upgraded to an Nvidia RTX 5060, and yes, i used the DDU, I did everything correctly, but now these effects simply refuse to be normal as they were on the AMD GPU. Every time they are activated (and I only observed these two mod effects), the FPS drops sharply from 70-80 to 15-20fps. When the mod effect ends, the FPS goes up again.
I've already tried disabling AA, searched for solutions on Google, Reddit, etc., and nothing. I figured out why this damn Nvidia driver is causing this.
I've already tried a new game and enabled those mods and effects features, and the strange drop continues.
Anyone, have you seen why this happens? Is the current Nvidia driver so sophisticated that it refuses to render a simple mod effect? (laughs)

 

Edited March 14 by mcdyn