# Slowness and sometimes “the window is not responding” error message

**URL:** <https://discourse.joplinapp.org/t/slowness-and-sometimes-the-window-is-not-responding-error-message/37454>\
**Category:** Support\
**Created:** [7 April 2024 11:44 UTC](https://discourse.joplinapp.org/t/slowness-and-sometimes-the-window-is-not-responding-error-message/37454 "2024-04-07T11:44:38Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![nonobio](https://avatars.discourse-cdn.com/v4/letter/n/779978/32.png) [@nonobio](https://discourse.joplinapp.org/u/nonobio)\
**Post date:** [29 April 2024 06:11 UTC](https://discourse.joplinapp.org/t/slowness-and-sometimes-the-window-is-not-responding-error-message/37454/19 "2024-04-29T06:11:13Z")

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Hi,

**My problem is practically solved with version 3.0.6 which includes, among other things:**  
Improved: Refactor sidebar to better handle thousands of tags and notebooks ([#10331](https://github.com/laurent22/joplin/pull/10331)) ([#4251](https://github.com/laurent22/joplin/issues/4251) by [@personalizedrefrigerator](https://github.com/personalizedrefrigerator))

A huge thank you 🙂

Yesterday, before installing this version, my first sync was still not completed. I was still at the [Download stage](https://discourse.joplinapp.org/t/first-sync-in-progress-weird-numbers-for-remote-items-created-deleted-is-it-normal/37642/16), i.e. 13 days after the start of sync!

**I then installed 3.0.6. The sync was still in progress but around 10 times faster:**

![Joplin_2024-04-28_06-42-47](https://canada1.discourse-cdn.com/flex028/uploads/cozic/original/3X/0/a/0a21aa26178f37b046152d6f9c2720853cb7c972.gif)

**and above all: I could use Joplin during sync,** which was impossible before!

On the other hand, I sometimes had a little lag, note changes and/or my cursor went back to the top of a note 🤔, but much less than before, and maybe that it is only during the first sync and/or that's another problem, to see over time...

**4 hours after installing 3.0.6, the sync finished:**  
 ![image](https://canada1.discourse-cdn.com/flex028/uploads/cozic/original/3X/1/4/143457a6397c89a2f05a1284ca20fe84b5f79152.png)

I manually clicked sync and a few seconds later it finished, indicating that the first full sync was finally completed.

I was curious to see if the "small" synchros which are launched automatically when you modify notes, were going to make Joplin lag as was previously the case: practically not: **Joplin remains usable and the small sync only lasts a few seconds.**

In my impulse I launched a manual backup because it also made Joplin unusable: damn, I had big lags, and the message The window does not respond twice but a few tens of seconds later, it works: Joplin is usable while the backup is in progress.  
In any case, I will continue to do as planned: make manual backups when I don't use Joplin.

**In the end, I am very happy, and thank you very much for this update** 🙂

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