Recordings will always stutter running that monitor @ 144. Set it @ 120 when using OBS.
Audio lag most likely caused by your surround headset.
Disable HAGS
23:46:47.059: Game Bar: On > Off
23:46:47.059: Game DVR: On > Off
Fix Scene & Scene 3, only 1 Display, Window, Game capture per.
23:46:48.775: Loaded scenes:
23:46:48.775: - scene 'Scene':
23:46:48.775: - source: 'Game Capture' (game_capture)
23:46:48.775: - source: 'Game Capture 4' (game_capture)
23:46:48.775: - source: 'Display Capture 2' (monitor_capture)
23:46:48.775: - source: 'Window Capture' (window_capture)
23:46:48.775: - source: 'Browser 7' (browser_source)
23:46:48.775: - source: 'Video Capture Device' (dshow_input)
23:46:48.775: - source: 'Image 2' (image_source)
23:46:48.775: - source: 'Image' (image_source)
23:46:48.775: - source: 'dono' (browser_source)
23:46:48.775: - source: 'subs' (browser_source)
23:46:48.775: - source: 'Image 3' (image_source)
23:46:48.775: - source: 'Browser 2' (browser_source)
23:46:48.775: - source: 'Browser 3' (browser_source)
23:46:48.775: - source: 'Browser' (browser_source)
23:46:48.775: - source: 'Browser 6' (browser_source)
23:46:48.775: - source: 'Browser 5' (browser_source)
23:46:48.775: - scene 'Scene 2':
23:46:48.775: - source: 'Video Capture Device' (dshow_input)
23:46:48.775: - source: 'Image 2' (image_source)
23:46:48.775: - source: 'Image 2' (image_source)
23:46:48.775: - source: 'Browser' (browser_source)
23:46:48.775: - source: 'Browser 2' (browser_source)
23:46:48.775: - source: 'Browser 3' (browser_source)
23:46:48.775: - source: 'Browser 5' (browser_source)
23:46:48.775: - source: 'Browser 7' (browser_source)
23:46:48.775: - source: 'Browser 6' (browser_source)
23:46:48.775: - source: 'subs' (browser_source)
23:46:48.775: - source: 'dono' (browser_source)
23:46:48.775: - scene 'Scene 3':
23:46:48.775: - source: 'Game Capture 2' (game_capture)
23:46:48.775: - source: 'Game Capture 3' (game_capture)
23:46:48.775: - source: 'Display Capture' (monitor_capture)
23:46:48.775: - source: 'Game Capture 5' (game_capture)