This is weird, i tried now and it lags immediately and randomly with 3 sec duration.
Also got disc activity from sam.exe
Laptop was just turned on, temps in HWMonitor are low.
And if you try without Digital Elevation Mesh?
Could you please check your Windows Performance Index?
Mine development system has: 5,9 (CPU:7,5 RAM: 7,6 Video: 7,3 Video 3D: 7,3 HDD: 5,9)
Intel Core i7 860 @ 2.8Ghz, 4Gb RAM
I will try to test it in my nootebook, with a way lower performance of 3,9 (CPU: 5.0 RAM: 5.0 Video: 3.9 Video 3D: 4.9 HDD: 5.1)
Intel Core2 Duo T7250 @ 2.0Ghz, 4Gb RAM