Rockstar Games Launcher settings

[Fishin]

Trying to trouble shoot the keyboard input lag and have an issue.
I open my Rockstar Games Launcher, and select settings top right.
There is no list of installed games so I can't change launch arguments.
The installed games are on the front screen, RDR2 only has the option to launch from steam.
What am I missing here? is it because I use Steam?
Or are the launcher settings hidden somewhere else?

[cyberterminex]

Put in a ticket for Rstar. It is something to do with the launcher update and it's not our job to diagnose anything.