# Vision laggy with upgrade to 8.3.4? **URL:** \ **Category:** Ignition\ **Tags:** ignition83, vision\ **Created:** [April 1, 2026, 8:44pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841 "2026-04-01T20:44:42Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![bghunt](https://avatars.discourse-cdn.com/v4/letter/b/8e7dd6/32.png) [@bghunt](https://forum.inductiveautomation.com/u/bghunt)\ **Post date:** [April 1, 2026, 8:44pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/1 "2026-04-01T20:44:42Z")
Any one on 8.3.4 noticed ignition being a laggy especially in their vision clients? I upgraded to 8.3.4 on the 19th of March and ever since I see many of our vision clients lag quite a bit. Many of the apps lean heavily on sql bindings which I have gone through to clean up and limit polling but barely a marginal improvement. While these apps may not have been great in the first place they still were fairly responsive before I made the upgrade and now users have to wait a couple seconds for the app to respond. ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [April 1, 2026, 8:49pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/2 "2026-04-01T20:49:45Z")
Upgraded from what version? Are there any errors in the logs about a "non-responsive EDT"? ---
**Author:** ![bghunt](https://avatars.discourse-cdn.com/v4/letter/b/8e7dd6/32.png) [@bghunt](https://forum.inductiveautomation.com/u/bghunt)\ **Post date:** [April 1, 2026, 9:02pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/3 "2026-04-01T21:02:39Z")
Upgraded from 8.3.2. Yes I frequently get something along the lines of `14:28:04.385 [EDT-Watchdog-1] INFO edt-watchdog -- Non-responsive UI thread detected. Stack saved at 'C:\Users\bhunt\.ignition\cache\gw172.16.1.10_8088\C0\NonResponsiveEdt-2026-04-01_142804.json'` showing up in the logs of the client as well as the designer ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [April 1, 2026, 9:12pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/4 "2026-04-01T21:12:21Z")
Get one or more of those files and post them here or send them in to support. That way we can tell whether the thing that's slow on the EDT is something we're doing, or something you're doing. I can't really think of anything that would have changed from 8.3.2 to 8.3.4 that would affect you here in an obvious way. 8.1 to 8.3, lots and lots of things changed, but not nearly as much within the minor version. ---
**Author:** ![bghunt](https://avatars.discourse-cdn.com/v4/letter/b/8e7dd6/32.png) [@bghunt](https://forum.inductiveautomation.com/u/bghunt)\ **Post date:** [April 1, 2026, 9:32pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/5 "2026-04-01T21:32:28Z")
[NonResponsiveEdt-2026-04-01\_153039.json](https://forum.inductiveautomation.com/uploads/short-url/au0gGl7zCtm3szNEJEuP96PWy6s.json) (86.2 KB) ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 1, 2026, 9:38pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/6 "2026-04-01T21:38:09Z")
A button's actionPerformed script is running heavy DB work in the foreground. That stalls the UI. If the DB is fast, no one notices. ---
**Author:** ![bghunt](https://avatars.discourse-cdn.com/v4/letter/b/8e7dd6/32.png) [@bghunt](https://forum.inductiveautomation.com/u/bghunt)\ **Post date:** [April 1, 2026, 9:48pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/7 "2026-04-01T21:48:12Z")
Mm ok thanks. Tricky, I recently increased max connections that could be held by some databases, can that bog down the database causing slow throughput? I'm just spit balling. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 2, 2026, 7:35am UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/8 "2026-04-02T07:35:53Z")
> [@bghunt](#): > > can that bog down the database Yes. But the devil is in the details. You should ask support to look over your situation. ---
**Author:** ![bghunt](https://avatars.discourse-cdn.com/v4/letter/b/8e7dd6/32.png) [@bghunt](https://forum.inductiveautomation.com/u/bghunt)\ **Post date:** [April 2, 2026, 4:02pm UTC](https://forum.inductiveautomation.com/t/vision-laggy-with-upgrade-to-8-3-4/114841/9 "2026-04-02T16:02:28Z")
Yes it seems I've got quite a few poorly formed queries running in the background that I guess with increased usage of ignition have created the perfect storm that happened to coincide with my system upgrade. Thanks for the help!