For people crashing using the launcher, try this. Taken from the R* site.
Run RDR2.exe as an administrator
Open the Rockstar Games Launcher
Select Settings
Select Red Dead Redemption 2 under My installed games
Select Open under View Installation Folder
Right-Click on RDR2
Select Properties
Under the Compatibility Tab
Select Run this Program as an Administrator and Disable Full Screen Optimization
Click OK
Return to the Games Menu in the Rockstar Games Launcher
Launch the game
You also gotta run the launcher as admin before hand. Switching the game to Windowed Full-screen eliminates a lot of lag.
[Edited by Grubbs008, 11/5/2019 3:23:48 PM]
This is realy works !! No problem with lag. Recomended.
Game runs amazing on my GTX 1080ti, only lag really when making sharp turns. (Not sure why, seems like a stutter) -- Nvidia doesn't seem to have the optimazation options as of yet but think they are waiting for the game to settle on it's patches.
Looking forward to seeing the trainer, Thanks CH Team
It's something to do with the mouse, i had the same issue, im running a rtx 2080ti, go to the mouse settings and change the mode, i set mine to directinput, which solved it.