# Upgrade to v1.0.2 - extremely slow (RESOLVED)

**URL:** <https://discourse.nodered.org/t/upgrade-to-v1-0-2-extremely-slow-resolved/16781>\
**Category:** General\
**Created:** [16 October 2019 16:24 UTC](https://discourse.nodered.org/t/upgrade-to-v1-0-2-extremely-slow-resolved/16781 "2019-10-16T16:24:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hazymat](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hazymat/32/108159_2.png) [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Post date:** [16 October 2019 16:24 UTC](https://discourse.nodered.org/t/upgrade-to-v1-0-2-extremely-slow-resolved/16781/1 "2019-10-16T16:24:23Z")

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After upgrading to v1.0.2, my NR editor is really slow, e.g. 30-90 second page load time from F5 refresh, and it takes a long time (between 10 and 20 seconds) to register a mouse press, or for the cursor to change depending on moving around in the view.

When I first upgraded, it wasn't noticeably laggy, however within about 5 minutes of having admin open in the browser straight after this, it became increasingly so.

- Tested in Windows 10, both Chrome & Firefox
- I have rebooted the Ubuntu server on which NR runs
- Browser console shows no errors
- Network trace in the browser (note, page starts showing at 35 seconds in this instance):  
 ![Clipboard01](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/a/afa38dc791b78b06f05a27ed0fd16f9010b8e05b.jpeg)

Any clues where to start with this?

Do I need to wipe my config and slowly re-introduce nodes?

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<div class="post-metadata">

**Author:** ![hazymat](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hazymat/32/108159_2.png) [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Post date:** [16 October 2019 16:39 UTC](https://discourse.nodered.org/t/upgrade-to-v1-0-2-extremely-slow-resolved/16781/2 "2019-10-16T16:39:17Z")

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**Fixed:** So I temporarily removed my flows\_server.json, reloaded the admin interface to a blank setup, then put the flows file back, and it was a lot faster. Then I split some nodes out into a new flow tab, and page loads continue to be back to normal. I'll leave this post, as maybe this will help someone?