Scenery flickering

Hey mates,

wanted to do my second flight on P3D. Flight should be EGLL-KSEA with UK2000 and T2G Seattle. On a short performance test for UK2000 I noticed that on approach the buildings and ILS lights on the masts are extremely flickering.

I set my P3D up after the instructions on the simmershome.de page. Did not have had that problem on a flight from EDDS to LEPA with Aerosoft scenery :o

Here is my P3D.cfg for the settings: https://www.dropbox.com/s/09utt6q5j5w1hnn/Prepar3D.cfg?dl=0