Some players are experiencing FPS drops in the game after installing the latest NVIDIA Driver 528.02. Here are potential fixes for the issue.
For some, Max Foreground FPS was set to “0″ after the installation for some reason.
Navigate to Escape > Options > Graphics and make sure the Max Foreground FPS Toggle is not enabled.
A second potential fix was brought up by Reshimes, who suggested disabling the Multi-Sample Alpha Test setting under Graphics -> Anti-Aliasing.