Saw the issue got changed from "needs more info" to "unable to reproduce". I've no idea what exactly it would take to make testers' computers to have lower framerate, but I've sanitized my save (plentiful with photos and objects for lower FPS than a fresh save) to have just three known blips for further ease of testing (Kel, the ATV, and the obelisk). Frankly, if that and messing with graphics settings is not enough to tank your FPS then I'm at a loss as to how to help anymore than this.
Here's also a video I decided to make while checking the bug does indeed happen on this save with my PC's specs, to further illustrate the bug. It's also made me realize how much worse it's been getting since my first report, seeing such a small dip and short distance be enough. But my main points are still there: The offending blip is the one furthest from the base, and the issue happens at lower FPS.