The log file does not show any sort of rendering or encoding lag to note. 2 frames lost in the last one, which is nothing. The only thing I would note is that recording to .mp4 is not really a good idea, as that format is susceptible to corruption if anything happens to prevent the final bits of data to be written. .mkv is a much better choice, and if .mp4 is needed, it can be remuxed afterward.
What are you using to play back your recordings?