diff --git a/.basedpyright/baseline.json b/.basedpyright/baseline.json
index 8aaa5228..f18796ab 100644
--- a/.basedpyright/baseline.json
+++ b/.basedpyright/baseline.json
@@ -2375,7 +2375,7 @@
                 "code": "reportCallIssue",
                 "range": {
                     "startColumn": 15,
-                    "endColumn": 37,
+                    "endColumn": 57,
                     "lineCount": 1
                 }
             },
@@ -2383,7 +2383,7 @@
                 "code": "reportUnknownVariableType",
                 "range": {
                     "startColumn": 15,
-                    "endColumn": 37,
+                    "endColumn": 57,
                     "lineCount": 1
                 }
             },
diff --git a/arraycontext/impl/numpy/__init__.py b/arraycontext/impl/numpy/__init__.py
index 3aac1a9e..265d7a53 100644
--- a/arraycontext/impl/numpy/__init__.py
+++ b/arraycontext/impl/numpy/__init__.py
@@ -197,7 +197,7 @@ def tag_axis(self,
         return array
 
     def einsum(self, spec, *args, arg_names=None, tagged=()):
-        return np.einsum(spec, *args)
+        return np.einsum(spec, *args, optimize="optimal")
 
     @property
     def permits_inplace_modification(self):