Arlo - take a look at the below screenshot - what are your settings here?
Also, try some of these tips:
- In the Graphic detail panel, click Setup>Video>Graphic detail, there are three sliders to improve performance:
* Level of detail and Displayed Object Size can be adjusted to improve game graphic quality or adjusted to improve FPS.
* Ground Detail Range is the distance to which objects come into video in full detail.
* Reducing the range will improve performance at a cost of when distance ground objects appear.
Go to the CV in tower view and open up the panel. Take a look at your FPS (ALT I or P?) Move the sliders all the way to the right (performance) and record the MAX FPS you get. Move all to the left and note your FPS- that's the min FPS . Your ideal should be 10-20 lower from the max.
Move all sliders back to the right. Start with your range and move it to the left until it starts to drastically effect FPS. Find the sweet spot and move it to the right a few mm. Next, move the ground detail range slider to the left, find the spot where it hits fps, and move it back a few mm. Finally, move the level of detail slider. Again, sweet spot it. You should have a workable fps 10-15 from the maximum - any more and when you encounter a busy section, your video card will struggle keeping up with the action.