This mod works with DCS World 2.5.6, from version 2.5.6.50321 up to 2.5.6.61527.3 (the final release of 2.5.6, before 2.7).
This is a modification to slightly improve performance with little to none image quality loss, and no issues with slow loading of missions.
It works with regular screen monitors, and also with VR.
This mod is also IC compliant for Multiplayer (no issues whatsoever in Online MP, if using DCS 2.5.6).
PLEASE NOTE: this mod will NOT work with the newer versions of DCS (2.7, 2.8 or 2.9).