# Performance Issue

**URL:** <https://community.glideapps.com/t/performance-issue/19556>\
**Category:** Report a Bug\
**Created:** [December 8, 2020, 3:22pm UTC](https://community.glideapps.com/t/performance-issue/19556 "2020-12-08T15:22:06Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![RonnieL](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/ronniel/32/980_2.png) [@RonnieL](https://community.glideapps.com/u/RonnieL)\
**Post date:** [December 8, 2020, 3:22pm UTC](https://community.glideapps.com/t/performance-issue/19556/1 "2020-12-08T15:22:06Z")

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Hi,

Over the past 24 hours I noticed that I can’t switch users (“Preview As”). Every time, I trying to preview s a different user, the screen doesn’t refresh (I see a blank app screen). Only after I refresh e whole age, I see the user I was trying to switch to.

Did anyone encounter the same issue?  
Any advice?

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**Author:** ![david](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/david/32/62831_2.png) [@david](https://community.glideapps.com/u/david)\
**Post date:** [December 8, 2020, 4:11pm UTC](https://community.glideapps.com/t/performance-issue/19556/2 "2020-12-08T16:11:20Z")

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We found some bugs in Preview As that should be fixed in the next week.

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**Author:** ![RonnieL](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/ronniel/32/980_2.png) [@RonnieL](https://community.glideapps.com/u/RonnieL)\
**Post date:** [December 8, 2020, 4:13pm UTC](https://community.glideapps.com/t/performance-issue/19556/3 "2020-12-08T16:13:41Z")

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Thanks!

Also - I noticed that 1) images and videos are loading slowly + 2) scrolling through the app is not smooth. Are these related to the same issue?

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**Author:** ![david](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/david/32/62831_2.png) [@david](https://community.glideapps.com/u/david)\
**Post date:** [December 8, 2020, 6:30pm UTC](https://community.glideapps.com/t/performance-issue/19556/4 "2020-12-08T18:30:29Z")

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No, you load videos directly from the video host, so if it’s slow, it’s likely your connection. Or are you storing your videos directly in Glide?

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**Author:** ![RonnieL](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/ronniel/32/980_2.png) [@RonnieL](https://community.glideapps.com/u/RonnieL)\
**Post date:** [December 8, 2020, 6:58pm UTC](https://community.glideapps.com/t/performance-issue/19556/5 "2020-12-08T18:58:35Z")

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Thanks.

Images are stored on Glide. They load slowly.  
Also scrolling through the app is not smooth.

(The videos from my host (S3) are loading fine)

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**Author:** ![RonnieL](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/ronniel/32/980_2.png) [@RonnieL](https://community.glideapps.com/u/RonnieL)\
**Post date:** [December 15, 2020, 4:32pm UTC](https://community.glideapps.com/t/performance-issue/19556/6 "2020-12-15T16:32:48Z")

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Happy to report that all issues have been solved.

The preview as issue was fixed.  
The images/video loading was mainly due to connection issues.