Hi!
I will not share an issue, but a solution, just in case someone try to find answer directly.
I'm using DCS 2.54 in Windows 10 64.
I was having stutters when I´m flying close to buildings or airway, especially if I move my head.
My rig: 1920X1080 resolution, I7 7700k (non OC), Mini Galax GTX 1070 (non OC), 32 Gb Ram (2X16, running at 2133Mhz, limited by the motherboard), 1 Tb HD, 40" Full HD samsung TV as monitor, alternative Track IR equipment with Opentrack (PS3 Eye camera).
I change point tracker settings -> model position -> calibration.
Instead of do the calibration and work with the numbers give it by it, I just leave it all "0 mm" (x, y and z).
In may case, solved totally the sttutering problem at least in simple flights (without AI and not in maximum graphics configs, becouse of rig limits).
I hope this helps someone.
Cheers.