Yep missing a hell of a lot of things, it allows you to select higher settings, but the horse power to run them. if you noticed my system specs are way lower than people who have high rigs,
Only got a single core pc, and the GPU doesn't even get warm
Set your setting to max everything, run the game, then install the Optimized pack, run the game again.
You should notice a hell of a lot of performance and smoother.
Big difference between 15fps Stutter and 15fsp smooth.
The Pack contains just graphics, nothing else.
HDR increased performance.
SSAO increased Performance.
Cheers ARCHIEIKE, please let me know and others how you get on