[Playerunknown’s Battlegrounds] Startup Steam Codes and Commands for Better FPS

This page contains a guide to get better FPS in PlayerUnknown’s Battlegrounds (PUBG) using Startup Steam Codes and Commands, as well as detailed methods to achieve better gameplay.

Startup Options

There is an item called ‘startup option‘ in Steam’s advanced settings. You can improve PUBG frame rate and operation slightly using start up options.

Because there is a risk that there would be bugs or odd behavior, please do so at your own risk when you set up. 

Although you can use it for shadowing, you can’t erase the shadow by the 6/22 update.

If you input these codes and something goes wrong because of it, you should remove the codes. According to the PUBG dev official twitter, customization of the ini and startup options is causing the frame rate to drop. You might need to delete them.

How to use Steam Codes in the Startup for PUBG

  1. Go to Steam Library. Right-click on PUBG and open properties.
  2. Look for an item called “Start-up options.” Click it to open.
  3. For these settings, enter these commands in the blanks below ‘for advanced users only.’

You can copy the steam codes below directly into the startup options:

-USEALLAVAILABLECORES -malloc = system -lowmemory-sm4
Although there’s a possibility that your game will improve by this, if it isn’t improved, change the graphic setting to get better performance.
Recommended graphic setting can be found here.

Steam Codes Start-Up Explanation

The following is the explanation of the code.


All cores of the CPU will be used for PUBG.


This setting is used to adjust the amount of memory allocated by the OS while PUBG is running. The game’s operation is optimized if you enter this command.


When your RAM is 8GB or less, this allows PUBG to use 8 GB or less.

-sm 4

Use this to switch the graphic API used for PUBG from DirectX 11 to DirectX 10. It affects old PCs that use this kind of hardware.

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