LethalPerformance

Optimizes CPU time and minimizes GC allocation. It should help with lag spikes, so your frametime will be smoother.

Links

• Thunderstore

Recommended mods

Recommended to use with these mods:

• LethalFixes by Dev1A3 - fixes lag spikes caused by Dissonance and RPC logging and more.
• AsyncLogger by Matty_Matty - moves logging to another thread, resulting in smoother frametime.
• BepInEx Faster Load AssetBundles Patcher by DiFFoZ - reduces RAM usage and speeds up asset loading, leading to smoother frametime.
• PathfindingLagFix by Zaggy1024 - makes the calculation of AI path to use time-slicing, resulting in smoother frametime.

Credits

• Icon by Lorc via game-icons.net

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.2.5] 2026-05-03

Added

• Dependency on DunGenReferenceFixer.

Fixed

• Game doesn't render anything with LCVR.
• Profiler doesn't work with updated unity version (thanks Zagster).

[1.2.3] 2026-04-07

Fixed

• Failing to find mold spread manager for caching.

[1.2.2] 2026-04-07

Fixed

• Harmony patches that was broken with v80 release.

[1.2.0] 2025-08-12

Changed

• Forced EntranceTeleport caching.
• For faster game start up disabled transpiler patch that replaces Object.FindObjectOfType.
• Disabled culling for custom pass to reuse main culling instead (that should also resolve crashing on moons that use tree/detail terrain rendering).

Fixed

• Steam valve doesn't pop (disabled caching of SteamValveHazard).

[1.1.6] 2025-06-02

Fixed

• Harmony patch failure warning.

[1.1.5] 2025-04-20

Fixed

• CruiserCourier mod causing moon objects to not be cached.

[1.1.4] 2025-04-19

Fixed

• Snowfall VFX from LethalElements doesn't work.

[1.1.3] 2025-04-14

Fixed

• Landing on Gratar moon causing camera to render only some parts of the sky [Thanks ThecheeseXD].

[1.1.2] 2025-04-12

Fixed

• Item duplication on lobby save [Thanks Kestrel16C].

[1.1.1] 2025-04-12

Added

• Check for internal flag from HarmonyX for better mod compatibility.

[1.1.0] 2025-04-12

Note: some mods are causing some entrance teleports to be not found. Tracking issue: https://github.com/DiFFoZ/LethalPerformance/issues/15

Added

• Caching of many networked objects (EntranceTeleport, VehicleController, Landmine, etc).
• Caching of moon objects (ItemDropship, RuntimeDungeon).
• Enable all optimization of Mono JIT, expect of aggressive inlining.
• Warning tip if entrance teleport are broken by some mod.
• Warning log if Terbium mod is installed.

[1.0.0] 2025-03-10

Added

• Caching of VehicleController, PlayerVoiceIngameSettings objects.
• Check for optimization to prevent vehicle to search dropship after delivery.

Changed

• Make rendering sampler to be included in release build, so dev can use it.

Fixed

• UnityExplorer may break caching system.
• PerProfileSaves mod incompatibility.

Pre-release [0.0.111] 2025-03-07

Added

• Check for optimization to prevent vehicle to search dropship after delivery.

Fixed

• After client disconnect the voice component cause index out of range in caching.

Pre-release [0.0.110] 2025-03-06

Added

• Caching of VehicleController, PlayerVoiceIngameSettings objects.

Changed

• Make rendering sampler to be included in release build, so dev can use it.

Fixed

• UnityExplorer may break caching system.

[0.6.0] 2025-03-04

ES3 caching is here! yay

Added

• Caching of AudioListener, DepositItemsDesk, BeltBagInventoryUI.
• Caching of ES3 files.

Changed

• Updated readme to include Lethal Sponge mod.

Pre-release [0.0.106] 2025-03-04

Changed

• Updated readme to include Lethal Sponge mod.

Fixed

• Lag spike during saving due to deleting save keys.

Pre-release [0.0.105] 2025-03-03

Fixed

• LCBetterSave and SmartItemSaving throwing exception, because of cached saving feature.

Pre-release [0.0.104] 2025-03-02

Fixed

• Crash when deleting save file.

Pre-release [0.0.103] 2025-03-02

Fixed

• Saving value by forcing it as object, causing writing garbage data.

Pre-release [0.0.102] 2025-03-02

Changed

• Force encryption for all saves. Prevents losing save when loading to the game without LethalPerformance.

Pre-release [0.0.101] 2025-03-02

Fixed

• Diversity intro cutscene plays every session.

Pre-release [0.0.100] 2025-03-02

ES3 caching is here! yay

Precaution:
If you load the game without LethalPerformance after playing with it, you will not able to get your saves to get loaded!

Added

• Caching of AudioListener, DepositItemsDesk, BeltBagInventoryUI.
• Caching of ES3 files.
• Saving ES3 files as unencrypted. Note that LCGeneralSaveData is still will be encrypted.

[0.5.1] 2025-01-27

Fixed

• Compatibility with BrutalCompanyMinusExtra(Reborn).

[0.5.0] 2024-12-03

Added

• Experimental option to utilize Steam Voice API instead of the Unity Microphone API. It's disabled by default, enabling it may help with less lag spike.
• Patched FoliageDetailDistance to remove allocation of material.
• Cached normals array in player normals calculation to remove allocation.

[0.4.3] 2024-11-29

Fixed

• Dummy from MoreCompany doesn't render when in game.

[0.4.2] 2024-11-05

Fixed

• Stack overflow when using Immersive Visor mod.

[0.4.1] 2024-10-03

Added

• Dynamic method compilation of the volume component for searching options to remove reflection usage.
• Enabled persistent history flag for ship cameras.
• Audio spatialization warning disabler if LethalLevelLoader or LobbyControl is not installed.

Changed

• Modified the mod to not wait until Loadstone and LCVR are loaded.
• Lowered priority of patches to minimize breaking other mods.

[0.4.0] 2024-09-09

Added

• Caching of AudioReverbPresets that will help to prevent lag spikes when entering/exiting ship.
• Auto force disabling volumetric fog if the hardware system doesn't support it.

[0.3.5] 2024-09-01

Changed

• Increased the reflection probe texture atlas from 1024x1024 to 2048x1024.

Removed

• The option to compress suit textures, as it is now enabled by default.

Fixed

• Config files for new mods are not saved if they contain only booleans [thanks @sweetbale].

[0.3.4] 2024-08-19

Fixed

• Pressing join by LAN crashing the server [thanks @Zaggy1024].

[0.3.3] 2024-08-10

Changed

• Do not modify UI camera settings if LCVR mod is loaded.

[0.3.2] 2024-08-07

Fixed

• String value with backslash are parsed incorrectly.

[0.3.1] 2024-08-07

Fixed

• Patcher assembly file included twice.

[0.3.0] 2024-08-07

Added

• Optimization to reduce memory allocation of reloading/saving config file.
• Async saving config file.

[0.2.1] 2024-07-31

Fixed

• LCVR mod fails to load because of missing OpenXR burst code.

[0.2.0] 2024-07-30

Added

• Keybind to open the Unity logs folder with Ctrl + Shift + L.
• Patching of BepInEx configuration to reduce memory allocation.
• CookieAtlasResolution and ReflectionProbeCacheResolution configuration options.
• Patching camera initialization to remove debugging window registration.

Fixed

• Caching was not working before Awake was called on the component.

[0.1.2] 2024-07-25

Changed

• Temporarily increased reflection probe atlas resolution to 2048x2048 to fix log spam.

[0.1.1] 2024-07-24

Added

• Config option Experimental.Mods::Compress custom suits textures, by default is disabled.

Changed

• Make caching to run before of all mods.

Fixed

• Terminal accessible objects code names are not rendered to the map camera.

[0.1.0] 2024-07-21

Added

• Config option Unsafe.Rendering to disable some rendering code, by default is disabled.
• Patching of stormy/rainy weathers to prevent logging: Sub-emitters may not use stop actions. The Stop action will not be executed.
• Added disabler of FileSystemWatcher. It's very unoptimized on Windows Mono.
• Added remover of some objects on scene loading.

Changed

• The system of unsafe caching instances.

[0.0.11] 2024-07-18

Changed

• Updated README.

Fixed

• Fixed Mirage unable to parse .wav file correctly.

[0.0.10] 2024-07-16

Added

• Implemented patches to reduce memory allocation:
  • AudioReverbTrigger no longer allocates every frame by avoiding the retrieval of a collider tag.
  • HangarShipDoor no longer allocates every frame by replacing string.Format with TMP_Text.SetText(string, float).
  • WaveFileWriter no longer allocates by rewriting Mono BinaryWriter.Write(float) to avoid array allocation with every write.
  • Resolved an issue where the local username billboard was toggling between enabled and disabled every frame, leading to unnecessary memory allocation.

Fixed

• Resolved an exception thrown by another mod attempting to access the object instance while in the main menu.

[0.0.9] 2024-07-08

Added

• Further optimized the process of finding a singleton object by not sorting by instance id.
• Added HarmonyXTranspilerFix dependency for patching edge cases that caused methods to break.

Removed

• Patch of ItemDropship that fixes NullReferenceException on custom moons. Recommended alternative CompanyCruiserFix.

[0.0.8] 2024-07-08

Added

• Optimization of finding a singleton object. This should help reduce lag spikes.

[0.0.7] 2024-07-04

Fixed

• Invalid patch of StartOfRound.SetPlayerSafeInShip.

[0.0.6] 2024-07-04

Added

• Optimization of HDCamera.UpdateShaderVariablesGlobalCB.
• Optimization of StartOfRound.SetPlayerSafeInShip.

Fixed

• Harmony patching exception with Loadstone mod.

[0.0.5] 2024-06-29

Fixed

• Temp bandaid fix for custom moons that item drop ship throwing NullReferenceException (important, it still doesn't fix spawning of vehicle on custom moons).

Known issues

• Harmony patch exception with Loadstone mod. You can ignore it safely.

[0.0.4] 2024-06-24

Fixed

• Burst API cannot find the burst method because of different assembly version.

[0.0.3] 2024-06-24

Added

• Optimization of HDCamera.UpdateShaderVariablesXRCB.

[0.0.2] 2024-06-22

Fixed

• Burst library cannot be found.

[0.0.1] 2024-06-21

Added

• Initial commit.