How to record video games in mp4 on a weak PC, for example?

Question

Video broadcast

I wrote real-time
video games on a powerful PC in real time ...
But I don’t know software for a weak PC ...

Answer 1

It turns out that the simplest of all
is just fraps (under windows), there are broken versions of 2019. and stable,
(there are few Russified stable ones)
but 1 GB per minute! and everything is in chocolate (especially if it’s on a separate screw or flash drive)
and the graphics in the game are at a minimum, it’s
not bad to defragment the disk with the game and windows and where to write the video file
, and remove antiviruses and stop or freeze unnecessary services.
though earlier there were even video cards with video output ..

Answer 2

Yes, anything - vseravno will lag.