From 6e9f329d051cf6bf6d83dbe5335f86a1752ec45a Mon Sep 17 00:00:00 2001
From: Shougo <Shougo.Matsu@gmail.com>
Date: Fri, 16 Sep 2016 08:19:36 +0900
Subject: [PATCH] perf: Skip foldUpdate() in insert-mode. #5299

Closes #5270
---
 src/nvim/fold.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nvim/fold.c b/src/nvim/fold.c
index 6ddcbcb13f..a92ee86248 100644
--- a/src/nvim/fold.c
+++ b/src/nvim/fold.c
@@ -761,7 +761,7 @@ void clearFolding(win_T *win)
  */
 void foldUpdate(win_T *wp, linenr_T top, linenr_T bot)
 {
-  if (compl_busy) {
+  if (compl_busy || State & INSERT) {
     return;
   }