官方给出的卡顿解决方案，加一条启动参数

九十九●忍

Rockstar Games Launcher

Disable any custom workarounds for this issue, including Process Lasso or BES
Start the Rockstar Games Launcher
Select Settings
Under My installed Games Select Red Dead Redemption 2
Scroll down to Launch arguments
Add the following command

-cpuLoadRebalancing

Select Games
Launch Red Dead Redemption 2

翻译就是在R星登录器里点设定，选择左边已安装游戏里的大镖客2，在里面的启动参数里填上 “ -cpuLoadRebalancing”

亲测有效，不用开那个bes了