# 8.1.33+ OPC Tag Writes Change

**URL:** <https://forum.inductiveautomation.com/t/8-1-33-opc-tag-writes-change/83138>\
**Category:** Ignition\
**Created:** [December 14, 2023, 1:04pm UTC](https://forum.inductiveautomation.com/t/8-1-33-opc-tag-writes-change/83138 "2023-12-14T13:04:02Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![zxcslo](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zxcslo/32/61610_2.png) [@zxcslo](https://forum.inductiveautomation.com/u/zxcslo)\
**Post date:** [December 14, 2023, 4:17pm UTC](https://forum.inductiveautomation.com/t/8-1-33-opc-tag-writes-change/83138/8 "2023-12-14T16:17:22Z")

</div>

I know nothing about batching (I am not even sure what that means)...

I have a script where I measure, how long it would take for one `writeBlocking` to write a bunch of tags...  
In v8.1.28 it takes 30-50ms to write. On 8.1.34 was 1000-1500ms.  
That's all saw.

I remember that I tried 8.1.34 to try this 'new' feature about [Tag reference](https://forum.inductiveautomation.com/t/tag-reference-tracker/80999)...  
And I think that when I enabled `Tag Reference Tracker Store` all of that 'slow writes' started.  
But when I disabled the `Tag Reference Tracker Store` again, it was no better, so I downgraded back to 8.1.28...

---

_[View the full topic](https://forum.inductiveautomation.com/t/8-1-33-opc-tag-writes-change/83138)._