Question / Help Having OBS open makes my games lag but causes no fps drops.

[Eldyy]

If I play any game I usually get 150+ fps.. If I open OBS it looks like I'm getting 50-60 fps in the game itself but the fps is still 150+. It looks bad in the obs preview window as well.

My log:
00:49:55.542: CPU Name: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
00:49:55.542: CPU Speed: 3696MHz
00:49:55.542: Physical Cores: 6, Logical Cores: 12
00:49:55.542: Physical Memory: 16318MB Total, 11363MB Free
00:49:55.542: Windows Version: 10.0 Build 17134 (revision: 407; 64-bit)
00:49:55.542: Running as administrator: false
00:49:55.542: Aero is Enabled (Aero is always on for windows 8 and above)
00:49:55.542: Windows 10 Gaming Features:
00:49:55.542: Game DVR: On
00:49:55.547: Sec. Software Status:
00:49:55.549: Windows Defender Antivirus: disabled (AV)
00:49:55.549: Norton Security: enabled (AV)
00:49:55.550: Norton Security: enabled (FW)
00:49:55.550: Windows Firewall: disabled (FW)
00:49:55.550: Windows Defender Antivirus: disabled (ASW)
00:49:55.550: Portable mode: false
00:49:55.621: OBS 21.1.2 (64bit, windows)
00:49:55.621: ---------------------------------
00:49:55.621: ---------------------------------
00:49:55.621: audio settings reset:
00:49:55.621: samples per sec: 48000
00:49:55.621: speakers: 2
00:49:55.625: ---------------------------------
00:49:55.625: Initializing D3D11...
00:49:55.625: Available Video Adapters:
00:49:55.627: Adapter 1: NVIDIA GeForce GTX 1080
00:49:55.627: Dedicated VRAM: 4176478208
00:49:55.627: Shared VRAM: 4260577280
00:49:55.627: output 1: pos={0, 0}, size={1920, 1080}, attached=true
00:49:55.627: output 2: pos={1920, 0}, size={1920, 1080}, attached=true
00:49:55.629: Loading up D3D11 on adapter NVIDIA GeForce GTX 1080 (0)
00:49:55.682: D3D11 loaded successfully, feature level used: 45056
00:49:56.196: ---------------------------------
00:49:56.196: video settings reset:
00:49:56.196: base resolution: 1920x1080
00:49:56.196: output resolution: 1920x1080
00:49:56.196: downscale filter: Lanczos
00:49:56.196: fps: 72/1
00:49:56.196: format: NV12
00:49:56.196: YUV mode: 709/Full
00:49:56.198: Audio monitoring device:
00:49:56.198: name: Default
00:49:56.198: id: default
00:49:56.198: ---------------------------------
00:49:56.201: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/chrome_elf.dll' not found, loading of module failed
00:49:56.204: [CoreAudio encoder]: CoreAudio AAC encoder not installed on the system or couldn't be loaded
00:49:56.278: [AMF] AMF Test failed due to one or more errors.
00:49:56.279: Failed to initialize module 'enc-amf.dll'
00:49:56.299: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
00:49:56.300: LoadLibrary failed for '../../obs-plugins/64bit/libEGL.dll': The specified procedure could not be found.
00:49:56.300: (127)
00:49:56.300: Module '../../obs-plugins/64bit/libEGL.dll' not loaded
00:49:56.302: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
00:49:56.305: [browser_source: 'Version: 1.31.0']
00:49:56.314: NVENC supported
00:49:56.407: Couldn't find VLC installation, VLC video source disabled
00:49:56.426: No blackmagic support
00:49:56.449: ---------------------------------
00:49:56.449: Loaded Modules:
00:49:56.449: win-wasapi.dll
00:49:56.449: win-mf.dll
00:49:56.449: win-dshow.dll
00:49:56.449: win-decklink.dll
00:49:56.449: win-capture.dll
00:49:56.449: vlc-video.dll
00:49:56.449: text-freetype2.dll
00:49:56.449: rtmp-services.dll
00:49:56.449: obs-x264.dll
00:49:56.449: obs-vst.dll
00:49:56.449: obs-transitions.dll
00:49:56.449: obs-text.dll
00:49:56.449: obs-qsv11.dll
00:49:56.449: obs-outputs.dll
00:49:56.449: obs-filters.dll
00:49:56.449: obs-ffmpeg.dll
00:49:56.449: obs-browser.dll
00:49:56.449: image-source.dll
00:49:56.449: frontend-tools.dll
00:49:56.449: enc-amf.dll
00:49:56.449: coreaudio-encoder.dll
00:49:56.449: ---------------------------------
00:49:56.449: ==== Startup complete ===============================================
00:49:56.485: All scene data cleared
00:49:56.485: ------------------------------------------------
00:49:56.523: WASAPI: Device 'Headset Earphone (Corsair VOID PRO USB Gaming Headset)' initialized
00:49:56.532: WASAPI: Device 'Microphone (Yeti Stereo Microphone)' initialized
00:49:56.568: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds
00:49:57.175: [window-capture: 'Rust'] update settings:
00:49:57.175: executable: RustClient.exe
00:49:57.266: Switched to scene 'Scene'
00:49:57.267: ------------------------------------------------
00:49:57.267: Loaded scenes:
00:49:57.268: - scene 'Scene':
00:49:57.268: - source: 'streamlabs alerts' (browser_source)
00:49:57.268: - source: 'WoW' (game_capture)
00:49:57.268: - source: 'CSGO' (game_capture)
00:49:57.268: - source: 'Insurgency' (game_capture)
00:49:57.268: - source: 'Rust' (window_capture)
00:49:57.268: - source: 'RB6' (game_capture)
00:49:57.268: ------------------------------------------------

 

[DEDRICK]

>= 144hz Monitor as your main monitor, 60Hz as your secondary?

Are you 100% certain your main monitor is set to 144hz in Windows? And does the issue go away if you minimize OBS?

And for good measure, update your OBS, you are a few releases behind https://github.com/obsproject/obs-studio/releases

 

[Eldyy]

>= 144hz Monitor as your main monitor, 60Hz as your secondary?

Are you 100% certain your main monitor is set to 144hz in Windows? And does the issue go away if you minimize OBS?

And for good measure, update your OBS, you are a few releases behind https://github.com/obsproject/obs-studio/releases

View attachment 41065

I appreciate the help but I actually figured out the issue by myself yesterday. I set my game monitor to 120hz to match the 60fps recordings. It was still a little choppy so I then minimized OBS and the problem wen't away. Thanks anyway :)