15:04:55.432: YUV mode: 709/Full
Swap back to Partial range. Unless you have a complete end-to-end Full RGB production pipeline, this is just going to cause problems and color skew.
15:05:01.188: [jim-nvenc: 'recording_h264'] settings:
15:05:01.188: rate_control: CBR
15:05:01.188: bitrate: 16000
15:05:01.188: cqp: 15
15:05:01.188: keyint: 120
15:05:01.188: preset: mq
15:05:01.188: profile: high
15:05:01.188: width: 1920
15:05:01.188: height: 1080
15:05:01.188: 2-pass: true
15:05:01.188: b-frames: 2
15:05:01.188: lookahead: false
15:05:01.188: psycho_aq: true
Record to CQP or CRF, not CBR. CBR is only used for livestreaming because the infrastructure requires it. It is the WORST recording method.
Use the Quality preset, NOT Max Quality. MQ isn't really meant for recording realtime video.
Disable Psychovisual Tuning. It causes encoding problems, for a minor visual improvement that's made pointless by using CQP/CRF.
15:09:33.891: [ffmpeg muxer: 'adv_file_output'] Output of file 'D:/Videjka/Klipy Games/2021-02-15 15-05-01.mp4' stopped
NEVER record directly to mp4 FOR ANY REASON. It is NOT a recording-safe format. If you need mp4s, record to FLV or MKV, then remux to mp4 using the OBS File menu, Remux Recordings.
15:09:33.892: Output 'adv_file_output': Number of lagged frames due to rendering lag/stalls: 5 (0.0%)
15:09:33.892: Video stopped, number of skipped frames due to encoding lag: 14720/14857 (99.1%)
You have an extremely old GPU, but as the rendering lag is minimal, this is probably due to the Max Quality and Psychovisual Tuning settings being on rather than due to actual overload. But yeah, skipping over 99% of frames is going to make your video 'freeze'.