when I add a font in obs of a videogame , there is this option called Hook Rate, What is this?

[Mxrce]

When I add a font in obs of a videogame (in this case overwatch), there is this option called Hook Rate, it can be Slow, Normal, Fast, Fastest. What is this and what is the best for the best streaming quality?

 

[Suslik V]

The Hook Rate is option from "Game Capture" source of original OBS application.
It means rate at which OBS will attempt to hook a new executable process (the game) in automatic mode of capture. In short, faster hook rate - to not miss first few seconds of the game footage when you starting a lot of games during your recording session.

...the speed at which the game capture plugin tries to find a valid window.

Too fast setting here may result in capture of image without SFX overlays (will capture game before overlay applied) and have other issues. Usually, the hook done only once, when game is starting (loading).

Hook Rate intervals for OBS v30.1.2:

Slow - interval is up to 4 sec​

Normal (recommended) - interval is up to 2 sec​

Fast - interval is up to 1 sec​

Fastest - interval is up to 0.2 sec​