The game use the graphic card and not the processor like others game. The game works fine for many specifications. Your have a medium/bad graphic card it's normal. Have you read the thread my video card uses like 20% if its potential on low settings and the textures won't go higher. This is not nor...

I think you might need more graphics memory to run the highest setting? When I run with the Highest Texture setting on my GTX460 I'm showing my graphics memory usage at 940MB. If you don't have a 1GB or higher graphics card maybe it won't allow it? Doesn't make it acceptable that the textures then ...