Awesome game but whats with the system usage ?

User Rating: 7.2 | Gothic 3 PC
This game is great, very smart AI, good combat, awesome world. Feels very close to oblivion, graphics are pretty much the same. One thing i dont understand is how i can walk down a fully detailed city with my graphics all the way up at a resolution of 1280+ But yet on Gothic 3 my computer is constantly cacheing my harddrive is going nuts most of the time playing this game. i had to drop down to 1080 resolution and im still lagging some what. This is with a nice system using a 7590 SLI card.

If they can fix that, then this game is awesome.