diff --git a/src/gui_2.py b/src/gui_2.py
index 0c4d96bb..7f43401d 100644
--- a/src/gui_2.py
+++ b/src/gui_2.py
@@ -7598,6 +7598,13 @@ Result    = _LocalResult
 ErrorInfo = _LocalErrorInfo
 ErrorKind = _LocalErrorKind
 
+# Singleton success Results for hot-path render-loop helpers.
+# Avoids per-frame dataclass allocation; the data=True default
+# means errors is the empty list, which is the canonical "ok" state.
+# Reused across all render-loop _result helpers' success paths.
+_OK_TRUE  = Result(data=True)
+_OK_FALSE = Result(data=False)
+
 #endregion: Phase 3 Result Stubs
 
 #region: Phase 3 Render-Loop Result Helpers (result_migration_gui_2_20260619)
@@ -7666,7 +7673,7 @@ def _render_main_interface_result(app: "App") -> Result[bool]:
     render_main_interface(app)
   else:
    render_main_interface(app)
-  return Result(data=True)
+  return _OK_TRUE
  except Exception as e:
   return Result(data=False, errors=[ErrorInfo(
    kind=ErrorKind.INTERNAL,