Give the opportunity to play live more than 30-40 minutes.
I noticed reduce dependence FPS with the growth of the volume of RAM, busy arma3.exe process.
Start the game - arma3.exe process uses approximately RAM = 2000mb.
From the graphics settings in the game depends on the initial value of the FPS. Any server where you start with the FPS = 120, there is a server where your game begins with the FPS = 60.
Then it all depends on the server \ ping to the server \ mission \ the number of players on the server.
Gradually the amount of RAM, busy arma3.exe process grows. As the RAM size, there is a gradual decrease in FPS. When 3000mb RAM = FPS = 25 short dips in FPS = 10-5.
When 3500mb RAM = FPS = 15-2 with long lapses to LRF = 7-1.
Next there is a loss of priority arma3.exe process.
CPU load drops rapidly. Now there is no way to force the process to raise arma3.exe CPU load. Just restart the game.
Any replacement arma3client_performance not affect the filling of RAM and up the low FPS.
Any arma3launcher settings do not affect the result. From arma3launcher settings depends, to some mistake ends the game just freezes on a black screen, or memory can not be read .....
Cash games 100%.
Arma3 without MOD.
the latest device drivers.
The temperature of PC components are normal.
RAM Test \ VRAM 100%.
PC is able to provide in-game FPS 0-130.