How to increase fps when recording obs?

Question

Video

With a bitrate of 4000 and the nvenc (new) codec, it gives 20-30 fps on recordings, in the game 60-100. Video card msi gtx 1650 (4gb), eighth generation intel i 3.

Answer 1

fix fps in the game (enable vertical synchronization) so that it does not take all available resources for itself,
upd can help: maybe because the bitrate is low ?