Try this! Let's make in notepad a batch or cmd with tis command line script:

start "" /affinity 0C "arma3.exe" -nosplash -skipIntro -noPause -CpuCount=X -maxmem=Y -maxvram=Z -exThreads=7

X= how much cpu cores you have; for ex.: CpuCount=1 if u have one core or 3 or 4 etc

Y= how much native system ram you have; for ex: maxmem=2048 if you have 2 Gb RAM or 4096 or 8192 etc

Z= how much VGA RAM you have; for ex: 1024 if you have 1 Gb video mem or 2048 or 3072 etc

Save as in the Arma3 root folder with "start" or "arma3" or (fucklowfps :) ) whatever relevant names... (bat or cmd extension if u like as well)

Maybe it will works, and will make better fps, but not sure... Good luck!

Solution: http://www.youtube.com/watch?v=HvcUZ9y3qcs

But what is the explanation of this phenomena? However this observable not only with Arma seria, but moreover most of games in the last times! Unfortunately is obvious and transparent. The game developers makes abusing and CHEATING... at this time most of the game developers are all CRIMINALS, who for the profit abuse the gamers and all theirs customers. Strongly suspicious that today the game developer corps makes secret contracts with the hardvare developers, to catalize the market, MOST OF GAME DEVELOPER CORPORATIONS INTENTIONALLY MAKES SLOW THE GAMES IN ULTRA GRAPHICS SETTINGS!! Thus those commits simply cheating and abusing. This is unacceptable! The relevant prosecutes will be starting soon! Most of game developers will be collaps cause this conspiratorial panama.