Nah, its ok, im a tough guy....
The only consequence is that you lose the silk smoothness parameter, thats all. The sharpening filter is back in the latest drivers (though i dont use it, honestly its not needed). But its located on nvidia control panel, i cant remember seeing it on npi.
Also i dont even need to use skil smoothness because i dont use shadow resolution 8k. Its completely pointless. Shadows still look terrible even using that resolution. Without using that resolution on shadows you dont need extra computer power anymore. I would not mind to keep using old drivers if i wasnt playing other new games, that run way better with new drivers. Besides, you can just increase the pre-rendered frames by one if you feel that the game does not run fine in your end.
I think in the end, its safer and more practical to use new drivers. If you dont use 8k shadows (as i said its pointless), you dont need silk smoothness parameter. You should give it a try.
And btw, didnt you have the same card as me? the 1660 ti? well, i tell you, you dont need silk smoothness.... and it wont matter if you had the best card in the market, the performance loss is not because your card, its because the game engine is very limited. Nothing we can do about that.