Question / Help OBS Frame Drop Issue

OBS lags when I record Starcraft 2. The game doesn't lose fps, only OBS.
I record other games with OBS and I have no problems, but with Starcraft 2, OBS lags.


I noticed this issue after Windows 10 got an update on 13th of May 2018.

System Specs:
OS: Win 10
Video Card: TitanX Pascal
Processor: i7 7700k
RAM: 32GB
2GB SSD
6GB SSHDD


What could be the cause of this problem?

ps: before 13 May 2018 I used to record SC2 with the same settings and I had no problem.
pps: when I opened OBS after 13 of May 2018, my Audio Track and Microphone where reset, I had to specify them again.


Log file is below:

20:34:03.010: CPU Name: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
20:34:03.011: CPU Speed: 4200MHz
20:34:03.011: Physical Cores: 4, Logical Cores: 8
20:34:03.011: Physical Memory: 32692MB Total, 22515MB Free
20:34:03.011: Windows Version: 10.0 Build 17134 (revision: 48; 64-bit)
20:34:03.011: Running as administrator: false
20:34:03.011: Aero is Enabled (Aero is always on for windows 8 and above)
20:34:03.011: Windows 10 Gaming Features:
20:34:03.011: Game DVR: On
20:34:03.012: Sec. Software Status:
20:34:03.013: Avast Antivirus: enabled (AV)
20:34:03.013: Windows Defender Antivirus: disabled (AV)
20:34:03.013: Windows Firewall: enabled (FW)
20:34:03.013: Windows Defender Antivirus: disabled (ASW)
20:34:03.013: Avast Antivirus: enabled (ASW)
20:34:03.014: Portable mode: false
20:34:03.083: OBS 21.1.0 (64bit, windows)
20:34:03.083: ---------------------------------
20:34:03.084: ---------------------------------
20:34:03.084: audio settings reset:
20:34:03.084: samples per sec: 48000
20:34:03.084: speakers: 2
20:34:03.085: ---------------------------------
20:34:03.085: Initializing D3D11...
20:34:03.085: Available Video Adapters:
20:34:03.086: Adapter 1: NVIDIA TITAN X (Pascal)
20:34:03.086: Dedicated VRAM: 4147118080
20:34:03.086: Shared VRAM: 4255631360
20:34:03.086: output 1: pos={0, 0}, size={3840, 2160}, attached=true
20:34:03.086: output 2: pos={-3840, -31}, size={3840, 2160}, attached=true
20:34:03.088: Loading up D3D11 on adapter NVIDIA TITAN X (Pascal) (0)
20:34:03.141: D3D11 loaded successfully, feature level used: 45056
20:34:03.688: ---------------------------------
20:34:03.688: video settings reset:
20:34:03.688: base resolution: 3840x2160
20:34:03.688: output resolution: 3840x2160
20:34:03.688: downscale filter: Lanczos
20:34:03.688: fps: 60/1
20:34:03.688: format: NV12
20:34:03.688: YUV mode: 601/Partial
20:34:03.689: Audio monitoring device:
20:34:03.689: name: Default
20:34:03.689: id: default
20:34:03.689: ---------------------------------
20:34:03.691: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/chrome_elf.dll' not found, loading of module failed
20:34:03.696: [CoreAudio encoder]: Adding CoreAudio AAC encoder
20:34:03.728: [AMF] AMF Test failed due to one or more errors.
20:34:03.728: Failed to initialize module 'enc-amf.dll'
20:34:03.738: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
20:34:03.738: LoadLibrary failed for '../../obs-plugins/64bit/libEGL.dll': The specified procedure could not be found.
20:34:03.738: (127)
20:34:03.738: Module '../../obs-plugins/64bit/libEGL.dll' not loaded
20:34:03.739: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
20:34:03.740: [browser_source: 'Version: 1.31.0']
20:34:03.743: NVENC supported
20:34:03.790: Couldn't find VLC installation, VLC video source disabled
20:34:03.794: No blackmagic support
20:34:03.800: ---------------------------------
20:34:03.800: Loaded Modules:
20:34:03.800: win-wasapi.dll
20:34:03.800: win-mf.dll
20:34:03.800: win-dshow.dll
20:34:03.800: win-decklink.dll
20:34:03.800: win-capture.dll
20:34:03.800: vlc-video.dll
20:34:03.800: text-freetype2.dll
20:34:03.800: rtmp-services.dll
20:34:03.800: obs-x264.dll
20:34:03.800: obs-vst.dll
20:34:03.800: obs-transitions.dll
20:34:03.800: obs-text.dll
20:34:03.800: obs-qsv11.dll
20:34:03.800: obs-outputs.dll
20:34:03.800: obs-filters.dll
20:34:03.800: obs-ffmpeg.dll
20:34:03.800: obs-browser.dll
20:34:03.800: image-source.dll
20:34:03.800: frontend-tools.dll
20:34:03.800: enc-amf.dll
20:34:03.800: coreaudio-encoder.dll
20:34:03.800: ---------------------------------
20:34:03.800: ==== Startup complete ===============================================
20:34:03.813: All scene data cleared
20:34:03.813: ------------------------------------------------
20:34:03.868: WASAPI: Device 'Speakers (Realtek High Definition Audio)' initialized
20:34:03.875: WASAPI: Device 'Microphone (Samson C03U )' initialized
20:34:03.901: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds
20:34:04.401: Switched to scene 'Popular'
20:34:04.402: [game-capture: 'SC2'] attempting to hook process: SC2.exe
20:34:04.404: ------------------------------------------------
20:34:04.404: Loaded scenes:
20:34:04.404: - scene 'Scene':
20:34:04.404: - source: 'Image' (image_source)
20:34:04.404: - source: 'RIOT Civil Unrest' (game_capture)
20:34:04.404: - scene 'Old Games':
20:34:04.404: - source: 'Display 1' (monitor_capture)
20:34:04.404: - source: 'Rise of Nations Extended Edition' (game_capture)
20:34:04.404: - source: 'Stronghold Legends' (game_capture)
20:34:04.404: - source: 'Impossible Creatures' (game_capture)
20:34:04.404: - source: 'State of War' (game_capture)
20:34:04.404: - scene 'Games':
20:34:04.404: - source: 'Cossacks 3' (game_capture)
20:34:04.404: - source: 'Afganistan 11' (game_capture)
20:34:04.404: - source: 'Wartile' (game_capture)
20:34:04.404: - source: 'SWGAW Editor' (game_capture)
20:34:04.404: - source: 'Formata' (game_capture)
20:34:04.404: - source: 'DoW 3' (game_capture)
20:34:04.404: - source: 'DISPLAY' (game_capture)
20:34:04.404: - source: 'Age of Empires 3' (game_capture)
20:34:04.404: - scene 'DRM Free':
20:34:04.404: - source: 'King Under The Mountain' (game_capture)
20:34:04.404: - source: 'Ancient Warfare 2' (game_capture)
20:34:04.404: - source: 'TABS' (game_capture)
20:34:04.404: - source: 'Fluffy Horde' (game_capture)
20:34:04.404: - source: 'Bronze Age' (game_capture)
20:34:04.404: - source: 'Warmage' (game_capture)
20:34:04.404: - source: 'Ancient Warfare 3' (game_capture)
20:34:04.404: - source: 'Cow Thunder Simulator' (game_capture)
20:34:04.404: - source: 'Rise of Liberty' (game_capture)
20:34:04.404: - source: 'Ostriv' (game_capture)
20:34:04.404: - source: '0 A.D.' (game_capture)
20:34:04.404: - scene 'FPS':
20:34:04.404: - source: 'MB Napoleonic Wars' (game_capture)
20:34:04.404: - scene 'New Games':
20:34:04.404: - source: 'Kindgoms and Castles' (game_capture)
20:34:04.404: - source: 'Total Tank Simulator' (game_capture)
20:34:04.404: - source: 'Life is Feudal Forest Village' (game_capture)
20:34:04.404: - source: 'Medieval Kingom Wars' (game_capture)
20:34:04.404: - source: 'Mushroom Wars 2' (game_capture)
20:34:04.404: - source: 'Guns Up' (game_capture)
20:34:04.404: - source: 'Dungeons 3' (game_capture)
20:34:04.404: - source: 'Epic Battle Simulator 2' (game_capture)
20:34:04.404: - source: 'Battlevoid Sector Siege' (game_capture)
20:34:04.404: - source: 'Numantia' (game_capture)
20:34:04.404: - source: 'Goblins of Elderstone' (game_capture)
20:34:04.404: - source: 'Iron Harvest' (game_capture)
20:34:04.404: - source: 'Foundation' (game_capture)
20:34:04.404: - source: 'Civitatem' (game_capture)
20:34:04.404: - scene 'Stronghold Series':
20:34:04.404: - source: 'Stronghold 3' (game_capture)
20:34:04.404: - source: 'Stronghold Crusader 2' (game_capture)
20:34:04.404: - source: 'Stronghold Crusader HD + EXtreme' (monitor_capture)
20:34:04.404: - source: 'Stronghold 2' (game_capture)
20:34:04.404: - scene 'Total War':
20:34:04.404: - source: 'Attila' (game_capture)
20:34:04.404: - source: 'Warhammer' (game_capture)
20:34:04.404: - source: 'Rome 2' (game_capture)
20:34:04.404: - source: 'Warhammer 2' (game_capture)
20:34:04.404: - scene 'MODS':
20:34:04.404: - source: 'Thrawn's Revenge' (game_capture)
20:34:04.404: - scene 'Popular':
20:34:04.404: - source: 'Ultimate Epic Battle Simulators' (game_capture)
20:34:04.404: - source: 'SW GAW' (game_capture)
20:34:04.404: - source: 'Age of Empires 2' (game_capture)
20:34:04.405: - source: 'Empires Apart' (game_capture)
20:34:04.405: - source: 'SC2' (game_capture)
20:34:04.405: ------------------------------------------------
20:34:04.406: [game-capture: 'SC2'] memory capture successful
20:34:27.780: Created profile 'SC2' (duplicate, SC2)
20:34:27.780: ------------------------------------------------
20:35:36.882: Settings changed (outputs)
20:35:36.882: ------------------------------------------------
20:35:46.658: [game-capture: 'SC2'] d3d9 memory capture successful
20:35:46.680: [game-capture: 'SC2'] memory capture successful
20:39:05.186: [game-capture: 'SC2'] ----------------- d3d9 capture freed -----------------
20:39:08.612: [game-capture: 'SC2'] d3d9 memory capture successful
20:39:08.631: [game-capture: 'SC2'] memory capture successful
20:39:14.190: Starting recording due to hotkey
20:39:14.190: ---------------------------------
20:39:14.191: [NVENC encoder: 'recording_h264'] settings:
20:39:14.191: rate_control: CBR
20:39:14.191: bitrate: 40000
20:39:14.191: cqp: 0
20:39:14.191: keyint: 250
20:39:14.191: preset: hp
20:39:14.191: profile: main
20:39:14.191: level: auto
20:39:14.191: width: 3840
20:39:14.191: height: 2160
20:39:14.191: 2-pass: true
20:39:14.191: b-frames: 2
20:39:14.191: GPU: 0
20:39:14.191:
20:39:14.488: [CoreAudio AAC: 'Track1']: settings:
20:39:14.488: mode: AAC
20:39:14.488: bitrate: 160
20:39:14.488: sample rate: 48000
20:39:14.488: cbr: on
20:39:14.488: output buffer: 1536
20:39:14.497: ==== Recording Start ===============================================
20:39:14.497: [ffmpeg muxer: 'adv_file_output'] Writing file 'D:/Recorded/2018-05-23 20-39-14.mp4'...
20:39:32.915: Stopping recording due to hotkey
20:39:33.399: [ffmpeg muxer: 'adv_file_output'] Output of file 'D:/Recorded/2018-05-23 20-39-14.mp4' stopped
20:39:33.399: Output 'adv_file_output': stopping
20:39:33.399: Output 'adv_file_output': Total frames output: 1108
20:39:33.399: Output 'adv_file_output': Total drawn frames: 556 (1131 attempted)
20:39:33.399: Output 'adv_file_output': Number of lagged frames due to rendering lag/stalls: 575 (50.8%)
20:39:33.399: ==== Recording Stop ================================================
20:46:17.078: ---------------------------------
20:46:17.078: video settings reset:
20:46:17.078: base resolution: 3840x2160
20:46:17.078: output resolution: 3840x2160
20:46:17.078: downscale filter: Lanczos
20:46:17.078: fps: 60/1
20:46:17.078: format: NV12
20:46:17.078: YUV mode: 601/Partial
20:46:17.083: Switched to profile '3840x2160 60fps' (3840x2160_60fps)
20:46:17.083: ------------------------------------------------
20:46:20.902: ---------------------------------
20:46:20.902: video settings reset:
20:46:20.902: base resolution: 3840x2160
20:46:20.902: output resolution: 3840x2160
20:46:20.902: downscale filter: Lanczos
20:46:20.902: fps: 60/1
20:46:20.902: format: NV12
20:46:20.902: YUV mode: 601/Partial
20:46:20.907: Switched to profile 'SC2' (SC2)
20:46:20.907: ------------------------------------------------
20:46:23.759: ---------------------------------
20:46:23.759: video settings reset:
20:46:23.759: base resolution: 3840x2160
20:46:23.759: output resolution: 3840x2160
20:46:23.759: downscale filter: Lanczos
20:46:23.759: fps: 60/1
20:46:23.759: format: NV12
20:46:23.759: YUV mode: 601/Partial
20:46:23.763: ------------------------------------------------
20:46:23.763: Removed profile 'SC2' (SC2)
20:46:23.763: ------------------------------------------------
20:46:23.765: Switched to profile '3840x2160 60fps' (3840x2160_60fps)
20:46:23.765: ------------------------------------------------
 
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