Their are 2 user.cfg files that need to be edited

(makes sure you have "Show hidden files" enabled or you wont see the appdata folder)

C:\Users\"YourProfile"\AppData\Local\4A Games\Metro 2033\user.cfg
And
C:\Program Files (x86)\Steam\userdata\283323302\43110\remote\user.cfg

in both open with notepad and Find the line that says "r_vsync off" and change it to on

Save

Open Nvida Control Panel

Select Manage 3D setting and go to Program settings tab

find the Metro2033.exe and select it

-set-

Maximum Pre-rendered frames to 4
Power management mode to Prefer maximum Performance
Vertical sync to fast



*and save*

Disclaimer: i dont own a AMD card so i cant tell you what to do their

Download and install this software-
https://bitsum.com/parkcontrol/

Open-

Their should be a drop down menu, select Bitsum Highest Performance

Apply and close Program By selecting ok at the bottom

game Options
Disable ADVANCED PhysX (requires Restart)

Graphics Options

Set Quality to normal (or High depending or your system)

Set DirectX to 11

Set AntiAliasing to AAA

Set the rest to what you wish

DirectX 11 Option

Turn off everything here

While the game is open, start task manager

Go to the Details tab

find the metro2033 exe process

right click

select set Priority and set to Realtime

(Warning: this will need to be done every time the game is opened)

(Warning: Setting Priority to Realtime will cause system instability)

These setting should improve your gameplay