Nvidia new graphic card lower fps
When you installed the drivers did you do a clean install, also make sure your card is running at PCI-E x16 after installing the new card,
Last week I went from a 680GTX to a 1080GTX and the game has way higher FPS in all situations, something something local is causing your issue.
You can find the speed of the port with a program called CPU-Z
Install geforce experience program.
It will help optimise all of your games and auto detect driver etc.
First questions first, what was your old video card? Also seconding the clean driver install, and making sure it’s actually in a PCI express x16 slot and not one of the slower ones. Also, Nvidia’s driver releases since September, and especially into October, have been fairly problematic for quite a few people as well
Install geforce experience program.
It will help optimise all of your games and auto detect driver etc.
All the “optimisation” does it adjusts the same graphics settings you could control yourself. It doesn’t “just make” your game run better.