From 3bdc41dff305422cb5334a64353c314bce1202a4 Mon Sep 17 00:00:00 2001
From: zhangenming <282126346@qq.com>
Date: Mon, 23 May 2022 08:36:57 +0800
Subject: [PATCH] perf: improve the performance of getNow (#5944)

---
 packages/runtime-dom/src/modules/events.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/runtime-dom/src/modules/events.ts b/packages/runtime-dom/src/modules/events.ts
index a4cb61e88fe..bd2279cf5f2 100644
--- a/packages/runtime-dom/src/modules/events.ts
+++ b/packages/runtime-dom/src/modules/events.ts
@@ -25,7 +25,7 @@ const [_getNow, skipTimestampCheck] = /*#__PURE__*/ (() => {
       // if the low-res timestamp which is bigger than the event timestamp
       // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
       // and we need to use the hi-res version for event listeners as well.
-      _getNow = () => performance.now()
+      _getNow = performance.now.bind(performance)
     }
     // #3485: Firefox <= 53 has incorrect Event.timeStamp implementation
     // and does not fire microtasks in between event propagation, so safe to exclude.