I don't have screencapture software at the moment, so I'll try to describe my problem instead.
I think it started happening when I used Command Line Arguments, I did that in order to record an Ion cannon strike for the Snow trailer. My screen just decides to jump back a few frames sometimes, looks a bit flickery, and it shows frames from like a second ago. This makes it impossible for me to play properly.
I uninstalled everything, used Shift+Delete to delete any remaining files (in Program Files (x86)\Renegade X), and did a fresh install with the new update, but the problem is still there. It happens a lot, maybe when it goes lower than 40 FPS but not sure, it's hard to read the FPS counter with that flickering.
I tried V-Sync and frame smoothing, didn't make a difference.
Maybe it helps if someone has the system settings ini's for me with (preferably) medium quality settings?
I think the Command Line Arguments I used were: Benchmark, Dumpmovie and FPS. I have since removed those arguments from the shortcut ofcourse.
Link to Command Line Arguments documentation: https://udn.epicgames.com/Three/CommandLineArguments.html