Every 60 seconds happens the steamCbk freeze which drops the FPS below 15 and that is extremely annoying when the FPS drops from 120 to below 15 and that every 60 seconds while playing for hours.

To reproduce just launch Arma 3 and open a map in the Eden Editor for example Stratis is completely enough, you don't even have to place a unit or click play scenario, just staying in the editor is enough and the freeze occurs every 60 seconds.