# Browser slowness with Guidewire and RUM

**URL:** <https://community.dynatrace.com/t/browser-slowness-with-guidewire-and-rum/20571>\
**Category:** Dynatrace Tips\
**Tags:** installation, real-user-monitoring-classic\
**Created:** [May 8, 2019, 12:20pm UTC](https://community.dynatrace.com/t/browser-slowness-with-guidewire-and-rum/20571 "2019-05-08T12:20:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SteveDumont](https://avatars.discourse-cdn.com/v4/letter/s/f19dbf/32.png) [@SteveDumont](https://community.dynatrace.com/u/SteveDumont)\
**Post date:** [May 8, 2019, 12:20pm UTC](https://community.dynatrace.com/t/browser-slowness-with-guidewire-and-rum/20571/1 "2019-05-08T12:20:18Z")

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When RUM was enabled on a Guidewire application, the users experienced browser responsiveness issues. The slowness incrementally increased over time We had to turn RUM off on that application. Working with support, it was found that ExtJS was creating too many events to track. An additional setting of exteventsoff=1 in the Custom configuration properties text field in the JavaScript library settings was needed. [Help Link: Real User Monitoring, Ext JS](https://www.dynatrace.com/support/help/technology-support/known-solutions-and-workarounds/)

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**Author:** ![ChadTurner](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/chadturner/32/161_2.png) [@ChadTurner](https://community.dynatrace.com/u/ChadTurner)\
**Post date:** [April 16, 2020, 1:57pm UTC](https://community.dynatrace.com/t/browser-slowness-with-guidewire-and-rum/20571/2 "2020-04-16T13:57:11Z")

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[@Steve D.](https://answers.dynatrace.com/users/29494/view.html) Thanks for the write up on this!