I have disabled all in game graphics with my Radeon settings. I than launch the game from Radeon and this has helped me a bunch. It seems to degrade over time but a game relaunch, again from Radeon, seems to fix it. I still run it on low, but get FPS as high as 130. I am no developer, but this tells me the issue is in the games graphic settings.
I have an RX580 8gb and since the Nov 8th update this game has been unplayable with micro-stutter. I just used my Radeon settings to override the game settings and so far (only one game) no stuttering. This may not be true for all maps. Time will tell, but for now it seems the problem is internal to Sandstorms GPU settings.
Nov 14th patch made it playable at times on ultra-low settings. If I don't get a server with a really low (30-50 ping) stable ping, the stuttering keeps it unplayable.
This is sad, since I was able to run it on high at 30-80 fps pre-Nov 8th patch.
The original game ran ok for me, now its unplayable.
Ryzen 3 1300 OC
8gb ram 2600
50-60 FPS high settings, low scope
smooth game play, just low fps
80-90 FPS med settings. low scope
micro stutters every time I get near a BOT and about every 20-30 secs.
So I waited a few hours and finally tried a round. Was showing 80 FPS and my screen was nothing but laggy jittery garbage. Try to run around an object only to see it appear right in my face, over and over and over. Dear God my favorite and most anticipated game is dying before official launch.
Watched the vid, I have to mostly agree with @AMURKA . All I saw was a bunch of snappy shots, like you were holding down left mouse as the reload was happening. You were everywhere with those shots.