Question / Help OBS Recording Is Laggy/Choppy on Good PC

BionicClick

BionicClick

Member
Hi,

your log file shows you have set under advance a cpu priority of high, but it is not being applied as you did not click the OBS icon with right click and run as administrator,. something you also need to open the (control alt delete menu and manually alter the OBS priority to high)

a few errors in your log
18:54:39.287: [game-capture: 'MW/Fortnite'] attempting to hook fullscreen process: explorer.exe
18:54:39.287: [game-capture: 'MW/Fortnite'] cannot capture explorer.exe due to being blacklisted

also, a lot of skipped frames due to encoder lag
19:11:12.878: Video stopped, number of skipped frames due to encoding lag: 4584/22610 (20.3%)

try turning the NVENC preset to quality not high quality.
 
carlmmii

carlmmii

Active Member
Run OBS as administrator, and turn off Psychovisual Tuning.

Also, what kind of storage device is E:? You're writing a large amount of data using cqp 18, so if your drive is getting overloaded, then that will be reported as encoding lag.
 
B

Ber2067

New Member
How do I turn off Psychovisual Tuning, and the storage device E: is a hard drive with 2 T of space in it. It currently has 1.59 T of free space.
 
carlmmii

carlmmii

Active Member
Change to advanced options, and uncheck Psychovisual Tuning. You may need to set up your other parameters to match the settings given by the simple preset:
21:53:51.433: rate_control: CQP
21:53:51.433: bitrate: 0
21:53:51.433: cqp: 18
21:53:51.433: keyint: 250
21:53:51.433: preset: hq
21:53:51.433: profile: high
21:53:51.433: width: 1920
21:53:51.433: height: 1080
21:53:51.433: 2-pass: false
21:53:51.433: b-frames: 2
21:53:51.433: lookahead: false
21:53:51.433: psycho_aq: false
Click to expand...

If you still have encoding lag after turning off psychovisual tuning, then see what happens if you record directly to your C: drive.
 
carlmmii

carlmmii

Active Member
Looks like you're one log behind -- the first one has no recording, and the 2nd one is the recording to the E: drive (which still shows the encoding lag present).

Still need to see the logs from the C: drive attempt.
 
carlmmii

carlmmii

Active Member
Ok, that dropped the encoding lag down considerably. It's still there, but that seems to suggest that the quality that you're recording at is too high for the physical act of recording. You can try using a higher CQP value to see if that fixes things further.

Just as a sanity check, do you have any antivirus software running? Anything that may possibly be intercepting disk write/read actions would put its own overhead on every transaction.
 
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