Thanks for the reply's everyone! I'll try to go over everyone's reply..
-I don't have any traffic added at all..I use VATSIM every once in a while, so that's why.
-CPU Usage is at or below 25%
-I understand that I probably won't get 60FPS, but getting a consistent 35 would be nice and not dropping to 15 or 20 every 5 seconds. My refresh rate on my monitor is 60hz (1080p).
-I have tried putting triple buffering on and had no luck either.
-Once I get off work tomorrow I will try and decrease the textures on my REX 4 settings and configure ORBX Vector a bit more. I have a feeling these are the issue as stated in the OP. It shouldn't be anything with my hardware, as I don't have any other issues with other games. I've been dealing with hardware and configuring that stuff for quite a while.
-Windows is set to performance mode and I'm trying to shy away from deleting my config file and reinstalling. I'm sure there's something.
Once again thank you for your support. Sorry for the slow reply, I'll try all of your advice this weekend!