don't refresh vesseldata multiple times per frame

Author: JonnyOThan

CHANGELOG.md

@@ -2,8 +2,10 @@
 
 ## Unreleased
 
-- Improve performance when new vessels are created (e.g. during RUD) - thanks @bimo1d
+- Improve performance by avoiding reparsing the ShipEffects config when new vessels are created (e.g. during RUD) - thanks @bimo1d
 - Avoid creating ShipEffects VesselModule for debris, spaceobjects, and dropped items - thanks @bimo1d
+- Improve performance when vessel part count changes several times in a frame (e.g. during RUD)
+- Avoid creating ShipEffects VesselModule for non-loaded vessels
 
 ## 0.9.13 - 2026-04-20
 

Source/RocketSoundEnhancement/ShipEffects.cs

@@ -101,6 +101,7 @@ public bool Initialize()
 
         List<Part> asteroidParts = new List<Part>();
         List<ModuleEngines> engines = new List<ModuleEngines>();
+        bool vesselDataDirty = false;
 
         void CacheVesselData()
 		{
@@ -121,13 +122,14 @@ void CacheVesselData()
                     }
                 }
             }
+            vesselDataDirty = false;
         }
 
         private void OnVesselPartCountChanged(Vessel data)
         {
             if (data != vessel) return;
 
-            CacheVesselData();
+            vesselDataDirty = true;
         }
 
 		IEnumerator SetupAudioSources(List<SoundLayer> soundLayers, bool hasAirSimFilter = true)
@@ -271,6 +273,11 @@ private void LateUpdate()
             if (!HighLogic.LoadedSceneIsFlight || !initialized || gamePaused || noPhysics || ignoreVessel)
                 return;
 
+            if (vesselDataDirty)
+            {
+                CacheVesselData();
+            }
+
             foreach (var soundLayerGroup in ShipEffectsConfig.SoundLayerGroups)
             {
                 if (soundLayerGroup.Key == PhysicsControl.SONICBOOM)