Left 4 Dead 2 Steam Launch Options to fix lag

Left 4 Dead 2 is one of the most famous and most played games made by valve. You can find players playing this game even though it has been a decade since its launch. I recently made a guide for the right graphics settings for Left 4 Dead 2. Now in this guide, you can learn about the best Steam launch options for Left 4 Dead 2. If you are looking to boost your FPS in Left 4 Dead 2 then these Steam Launch options.

Left 4 Dead 2 Steam Launch Options

If you want to change steam launch options in Left 4 Dead 2 then follow the steps below:

1) Go to the Steam library.

2) Select the game and click on properties.

3) Then select  “Set launch options”

left 4 dead 2 steam launch options

The best steam launch settings I found for Left 4 Dead 2 are the -novid -high -lv parameters for low-end systems. The final version looks like the commands below. You can directly copy it if you want a full FPS boost.

left 4 dead 2 steam launch options
 -novid -high -lv -useallavailablecores


This option can save you a lot of time by disabling the intro video for left 4 dead 2. It is a great steam launch option for gamers who play a lot of games since it works on a lot of games from steam. Also, the intro video is quite loud and annoying to listen to every time you start the game.


This steam launch option lets you play Left 4 dead 2 in high-priority settings. The same option works for a lot of games so feel free to test this option in other Steam games as well.

It saves you the time of manually using the task manager to increase the priority of the game. Increased priority means more resources for Left 4 dead 2 and higher FPS in gaming.

You can also optimize your system for gaming to boost FPS in Left 4 Dead 2.


This option forces the CPU to use all the cores for gaming. This option was originally meant for older games that were not used to the new multicore architecture. If you have an 8-core or a 16-core processor then this option can help you get some added performance in l4d2.


This command forces the game to launch is low violence mode. Hence the name -lv. It essentially enables the low-violence or censored version of the game where there is no blood and scary effects. The bodies also disappear quickly and scenes removal of limbs/cuts/wounds etc are removed. Burning effects, as well as blood splatter effects, are completely removed hence you get a great FPS boost and the cost of the scary experience. If you really need an FPS to boost then use this option otherwise don’t use it. It tends to take the fun out of the game.
That’s all folks. These were the steam launch options to boost fps in left 4 dead 2. If you guys know any more options that work well and do not cause vac ban issues as some options that have been excluded from the list do, then let me know in the comment section below. Happy Gaming
See you in-game

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