Your settings are odd.
What are your computer specifications? It would help to adapt a good setting to you.
Meanwhile, try to adjust to:
Neighbour Tiles Count: ~5
Max. Obj. Visibility Distance: 1000
Min. Obj. Size: 1% or 1.5%
For Reflections: 4.5%
Max Map Complexity: 2
Uncheck the options:
Always use Low-Res Textures
Max Texture size for high-res: 512mb
Real Time Reflexions Texture size: 256mb
If you don't have a powerful computer, turn off the options Stencil Buffer and Particle System.
Try posting your PC settings so we can help you better.