Yes, your system can't manage that much.
You are using cqp 15, and that is too much. Try 20 to 23. b-frames should be 4 and keyframe interval 0.
It it still to much, use 30fps. And then lower to 720p.
You probably want ot record using simple output mode:
Unless you need more than 1 audio channel. In that case:
Do not use (untick) look-ahead and psyco visual tuning.
From the analizer, you may want to follow it's recommendations:
OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
obsproject.com
File container should be
mkv, just in case the recording crash, so you don't lose what was recorded at that moment. You can remux it into mp4 after (file menu). And to be really sure, do not delete the mkv file until you are fine with the remux results.
Mismatched Sample Rates, in OBS setting, Audio:
