The bug isn't happening for a lot of people I know neither also unfortunately it affects SOME peoples performance within a mile radius from me, I'm almost sure its the Vikhrs smoke causing the issues but I'm not 100% positive. I've tried a clean windows install with no success of fixing the issue.
My PC Ryzen 5 2600, GTX 1660 super, 16gb Of RAM + 16gb pagefile, Windows 10
DCS Is installed on a SSD