diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst
index 755d681b9df2be..1486eeb3053da4 100644
--- a/Doc/library/dis.rst
+++ b/Doc/library/dis.rst
@@ -1642,7 +1642,7 @@ iterations of the loop.
 
    Pushes a ``NULL`` to the stack.
    Used in the call sequence to match the ``NULL`` pushed by
-   :opcode:`!LOAD_METHOD` for non-method calls.
+   :opcode:`LOAD_ATTR` for non-method calls.
 
    .. versionadded:: 3.11
 
diff --git a/Misc/NEWS.d/next/Library/2026-02-01-15-25-00.gh-issue-144380.U7py_s.rst b/Misc/NEWS.d/next/Library/2026-02-01-15-25-00.gh-issue-144380.U7py_s.rst
new file mode 100644
index 00000000000000..4b5b1b3776d735
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-02-01-15-25-00.gh-issue-144380.U7py_s.rst
@@ -0,0 +1 @@
+Improve performance of :class:`io.BufferedReader` line iteration by ~49%.
diff --git a/Modules/_io/bufferedio.c b/Modules/_io/bufferedio.c
index 6d779abd89ca84..0fdae7b2d21004 100644
--- a/Modules/_io/bufferedio.c
+++ b/Modules/_io/bufferedio.c
@@ -1505,8 +1505,8 @@ buffered_iternext(PyObject *op)
 
     _PyIO_State *state = find_io_state_by_def(Py_TYPE(self));
     tp = Py_TYPE(self);
-    if (Py_IS_TYPE(tp, state->PyBufferedReader_Type) ||
-        Py_IS_TYPE(tp, state->PyBufferedRandom_Type))
+    if (tp == state->PyBufferedReader_Type ||
+        tp == state->PyBufferedRandom_Type)
     {
         /* Skip method call overhead for speed */
         line = _buffered_readline(self, -1);