updated for version 7.3.453
Problem:    Pasting in the command line is slow.
Solution:   Don't redraw if there is another character to read. (Dominique
            Pelle)
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 1f5c873..f811889 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -1852,8 +1852,11 @@
 # endif
 		)
 	    /* Always redraw the whole command line to fix shaping and
-	     * right-left typing.  Not efficient, but it works. */
-	    redrawcmd();
+	     * right-left typing.  Not efficient, but it works.
+	     * Do it only when there are no characters left to read
+	     * to avoid useless intermediate redraws. */
+	    if (vpeekc() == NUL)
+		redrawcmd();
 #endif
     }