diff --git a/cache/src/main/kotlin/org/openrs2/cache/FlatFileStore.kt b/cache/src/main/kotlin/org/openrs2/cache/FlatFileStore.kt
index edd4bdcd22..486ce50f00 100644
--- a/cache/src/main/kotlin/org/openrs2/cache/FlatFileStore.kt
+++ b/cache/src/main/kotlin/org/openrs2/cache/FlatFileStore.kt
@@ -92,7 +92,7 @@ public class FlatFileStore private constructor(
         val path = groupPath(archive, group)
         Files.createDirectories(path.parent)
 
-        path.useAtomicOutputStream { output ->
+        path.useAtomicOutputStream(sync = false) { output ->
             buf.readBytes(output, buf.readableBytes())
         }
     }