There is no single Garry’s Mod preset that guarantees better frame rates on every low-end PC. Start by lowering the game’s video-quality settings, then test a modest resolution reduction if needed. If performance is still poor, check the map’s props and constraints, addons, and other running programs: a demanding scene can remain slow even with graphics turned down.
Start with a repeatable test
Before changing settings, pick the same map and situation for each comparison. Note whether the problem is consistently low frame rate, intermittent stutter, slow loading, or crashes; they can have different causes. Change one setting or condition at a time so you can tell what actually helped.
Which settings should you lower first?
Reduce video quality gradually
Lower the available video-quality settings in Garry’s Mod’s options, then revisit the same scene. The game’s official support guidance specifically suggests reducing Texture Detail when mods or a server may be using substantial video memory, particularly when the game crashes during play or loading. Treat it as a troubleshooting step for potential VRAM pressure, not a guaranteed frame-rate boost.
Try a lower resolution only if needed
If lowering quality does not improve performance enough, try a modest resolution reduction through the game’s options, then compare the same scene. Lower resolution can reduce the amount of image data the PC has to render, but it also makes the picture less sharp. Restore your previous resolution if the visual trade-off is not worthwhile.
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Facepunch documents startup resolution parameters such as -w 1280 -h 720 for display or startup troubleshooting. These are examples of launch parameters, not benchmark-proven FPS presets. Prefer the in-game option when it is available; use launch parameters when you need to address a startup or display problem.
Check what is making the scene demanding
Graphics settings are only one part of the workload. Garry’s Mod’s official FAQ, under “Everything’s really slow,” identifies large numbers of spawned props or constraints, too many addons, and other programs running as possible contributors. Test each factor separately:
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- Remove some props or constraints and compare the same area.
- Temporarily reduce the number of addons in use.
- Close other programs and check whether the slowdown changes.
These are possible causes, not a diagnosis that applies to every slow PC. A crowded map or addon-heavy setup may remain demanding even after you lower graphics settings.
Use launch options for specific troubleshooting
Launch options have different purposes: some help isolate a problem or reset configuration, while others set startup or display behavior. They should not be treated as a bundle of proven FPS commands. The Garry’s Mod Wiki’s launch-options documentation describes the general +<ConVar Name> <value> form for setting a console variable after the game starts and lists Garry’s Mod-specific switches.
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Temporarily disable addons to isolate them
Facepunch documents -noaddons -noworkshop as a way to disable legacy-folder and Steam Workshop addons without deleting them. If the game runs better with those options, addons may be part of the problem. Remove the options from Steam’s launch settings to re-enable addons; this is a diagnostic test, not a permanent performance preset. See Facepunch’s support instructions.
Try auto-configuration as a temporary reset
The same support page documents -autoconfig, which lets Steam configure Garry’s Mod with settings for the machine. Try it as a configuration reset, then remove the option from launch settings afterward, as Facepunch instructs. It is not an ongoing optimization setting.
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Consider the 64-bit client without expecting a guaranteed gain
Facepunch’s September 2026 update says the 64-bit client can be selected from Steam launch options. The update does not establish that it raises frame rates on every low-end PC, so treat it as an available client choice rather than a universal fix.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.A practical order for troubleshooting
- Choose a baseline: use the same map and situation, and note whether you are dealing with low frame rate, stutter, loading trouble, or crashes.
- Lower video quality: change one option at a time and test again. Try Texture Detail in particular if mods or a server may be putting pressure on video memory.
- Test resolution: if needed, lower it by a modest step and compare. Restore the original setting if the image-quality trade-off outweighs any improvement.
- Reduce scene load: remove some props or constraints, then test again.
- Check addons and background programs: reduce addons or close other programs one condition at a time. Use
-noaddons -noworkshopif you need to isolate addons without deleting them. - Reset configuration only if appropriate: try
-autoconfigfor a machine-specific configuration reset, then remove it. - Test the 64-bit client if you want: select it through Steam’s launch options, but judge the result on your own system rather than assuming an FPS increase.
What to expect from these changes
Facepunch’s guidance does not give a universal settings preset or a measured FPS gain for these steps. Results depend on the PC and what is happening in the game. Lowering visual settings tests rendering load; reducing props, constraints, addons, or running programs tests other possible sources of slowdown. If one category of change does not help, move to the next rather than stacking unrelated launch commands.
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