Stalker 2 lagging, delay, or frame rate drop issues deeply affect the smoothness of game operation.
Stalker 2 is no exception.
Many users have reported that they are encountering the Stalker 2 low FPS problem, including my friend.
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you’re free to try the methods below to handle the lag and improve the games performance.
Stalker 2 Performance Optimization Solutions
Solution 1.
Here are the operation steps.

Right-click theStartbutton on the taskbar and chooseTask Manager.
Right-click theStalker 2 fileand chooseSet priority>High.
Solution 2.
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Many high-end mouse brands provide dedicated software, such asLogitech G Hub, to change mouse-related prefs.
Solution 3.
This may cause the game to lag or even crash.
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Solution 4.
Stalker 2 is a well-known game, so many mods for it are available for download.
Solution 5. to check for and download driver updates.
you might refer to the solutions above to eliminate the Stalker 2 stuttering/lagging issue on Windows.