So since about a month ago I've been having this issue with FSX. My ground textures load very slow. They don't load until I'm right over the area. Random trees keep appearing up. The ground about 5 miles in front of me is completely barren. I have no clue what to do. It's not my add ons because I've tried it all. Have done a re install and it's still the same. I have no clue what to do. It drops my Frames about 20 fps! Anyone know about this? Thanks.

PC Specs

-AMD 8320 8 Core CPU @ 4.0 GHz
-MSI 7870
-8 gigs of 1600 MHz RAM
-GIGABYTE motherboard

Add Ons

-FSDT O'Hare
-Aerosoft Hamburg
-PMDG 737 & 747-400/800
-CS 777-200/300 & 767
-REX 4
-FS Recorder
-My Traffic 2013
-Freeware Sceneries & Planes