# Advance Linked Charts performance issues

**URL:** <https://community.appfarm.io/t/advance-linked-charts-performance-issues/402>\
**Category:** Feature requests\
**Tags:** ui\
**Created:** [April 12, 2023, 3:03pm UTC](https://community.appfarm.io/t/advance-linked-charts-performance-issues/402 "2023-04-12T15:03:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lars\_dtc](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/lars_dtc/32/99_2.png) [@lars\_dtc](https://community.appfarm.io/u/lars_dtc)\
**Post date:** [April 12, 2023, 3:03pm UTC](https://community.appfarm.io/t/advance-linked-charts-performance-issues/402/1 "2023-04-12T15:03:47Z")

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Hi!

I cannot get the linked charts to be performant enough to be usable. Even with only two charts with a relative small amount of data it does not work. It might have something to do with the amount of datasets. When linking two charts with only one dataset in each it seems to perform ok.  
 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/1X/a7769605da8844781be35de9a9cf4c2a7d864b28.png)

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/1X/3691555cf95235934e7fb496324480c1fb401032.png)  
[2023-04-12 17-01-24.mkv](https://community.appfarm.io/uploads/short-url/dabhHgfqU3BAoGMPCiHTybuxpz4.mkv) (394.6 KB)

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<div class="post-metadata">

**Author:** ![kristian](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/kristian/32/58_2.png) [@kristian](https://community.appfarm.io/u/kristian)\
**Post date:** [April 14, 2023, 8:59am UTC](https://community.appfarm.io/t/advance-linked-charts-performance-issues/402/2 "2023-04-14T08:59:21Z")

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Hi!

We’ll investigate this one. Approximately how many entries exists in the datasource (without and with the filter applied on the chart itself), and how many datasets? Is the dataset property a reference to an object class or an enumerated type?

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<div class="post-metadata">

**Author:** ![lars\_dtc](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/lars_dtc/32/99_2.png) [@lars\_dtc](https://community.appfarm.io/u/lars_dtc)\
**Post date:** [April 20, 2023, 8:40am UTC](https://community.appfarm.io/t/advance-linked-charts-performance-issues/402/3 "2023-04-20T08:40:44Z")

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Hey!

When I turned the linked charts option on again now it was much better 🤔

But i found some other issues:

- When i have linked charts turned on i can’t get the tooltip to attach to other trends
- It looks like the onZoom action breaks (but this can be related to how i have created the actions)  
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