Question / Help Lag when recording Minecraft

[herperoneno]

Usually when I don't record it goes to 90 fps, but when I start the rec it goes at 3 fps when fullscreen.
I have a Macbook Pro mid 2014 (8 GB of ram, CPU i5 4278U) with Windows (bootcamp) installed, here's why I'm posting this in Windows Support section.

Here there's the log.
https://obsproject.com/logs/gCrYS-W79qU9EkI1