I have the same problems. Just bought the game, launched it, closed it, installed the mods except for the last one mentioned.
- Lenny's Simple Trainer
- Lenny's Mod Loader
- RDR2 Outfit Changer
- Red Dead Offline
Nothing works, I have also tried reinstalling my drivers and installing the studio driver from nvidea instead, but that just makes the game look bad(and it didn't fix the problem.