diff --git a/packages/phoenix-event-display/src/managers/three-manager/import-manager.ts b/packages/phoenix-event-display/src/managers/three-manager/import-manager.ts
index 8cb98759..0adbdb7c 100644
--- a/packages/phoenix-event-display/src/managers/three-manager/import-manager.ts
+++ b/packages/phoenix-event-display/src/managers/three-manager/import-manager.ts
@@ -440,6 +440,10 @@ export class ImportManager {
                 BufferGeometryUtils.mergeGeometries((val as any).geoms),
                 (val as any).material,
               );
+              // Dispose intermediate geometries to free GPU memory
+              for (const geom of (val as any).geoms) {
+                geom.dispose();
+              }
               mesh.renderOrder = (val as any).renderOrder;
               scene.add(mesh);
             }