The computer will run it OK, but the video card scares me a little. That company went out of business a couple years ago. Drivers are not being updated. If you have problems with it, there is nowhere to turn.

A GeForce2 card would be a good match for the computer. You shouldn't have to spend more than $50 on the card.

You wont have to turn off all the options. The physics will remain the same no matter how many options you turn off.

Hope this helps