Well since 1.9 with the high definition pack and DX11 pack, I can run the game really smooth, but would stutter like crazy in some cases, like one time in city hall 2nd floor, one guy's grenade shattered the ceiling glass, everything would stutter for like 5 seconds, and it felt like the frame rate was about 5 (didn't run Afterburner to check). I remember encountering the same issue once in Skyline when someone called an Orbital Strike.
Does anyone have this issue? This does not happen every time there's an Orbital Strike or glass shattering, so I'm not so sure about what really triggers this stuttering.
Many thanks for any kind advice and help in advance!