Terrain Issues, program running super slow

[Sourgrain]

I'm having a few issues with the terrain particularly in front of the garage doors, its kind of "spikey". I checked for any random elevation points or regions but can't see anything in particular that would cause this. This area used to have gravel but I deleted that layer so I could try to see what's going on with the terrain. Also for some reason the program is running very slow today. Takes minutes to toggle between views. Yesterday it worked fine, today was very slow from startup. Any ideas on what would be taxing the program? Any help is greatly appreciated!

[y-g-m-n]

Need file to see what you have entered for terrain contours, points etc that define terrain elevations.

Have you rebuilt terrain?

 

few tricks on there with some terrain features if you check manual and help screen.