# Device cache - experiencing preview app performance issues **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [July 12, 2021, 10:15am UTC](https://community.thunkable.com/t/device-cache-experiencing-preview-app-performance-issues/1391904 "2021-07-12T10:15:21Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![exploriverse.com](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/exploriverse.com/32/77609_2.png) [@exploriverse.com](https://community.thunkable.com/u/exploriverse.com)\ **Post date:** [July 12, 2021, 10:15am UTC](https://community.thunkable.com/t/device-cache-experiencing-preview-app-performance-issues/1391904/1 "2021-07-12T10:15:21Z")
Is there a way to know what thunkable or the thunkable preview app puts into the devices cache? Im experiencing slow down in the preview app on 2gb ram iphones and I think it has to do with my blocks? How can I trouble shoot this? Or do you have a support page that talks about things that contribute to cache? Also reached out to in app customer support. ---
**Author:** ![skulamester](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/skulamester/32/100480_2.png) [@skulamester](https://community.thunkable.com/u/skulamester)\ **Post date:** [July 12, 2021, 10:35am UTC](https://community.thunkable.com/t/device-cache-experiencing-preview-app-performance-issues/1391904/2 "2021-07-12T10:35:30Z")
I do experience slow performance while using GIF. The problem is that Thunkable doesn’t close the screens if navigating to a new screen, it opens the new one but the previous one remains opened, so all the animations and GIFs on them run in the background which leads to a slow permormance. To speed things up I decided to clear all of the GIF’s from code before opening a new screen, so they don’t run in the background. ---
**Author:** ![exploriverse.com](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/exploriverse.com/32/77609_2.png) [@exploriverse.com](https://community.thunkable.com/u/exploriverse.com)\ **Post date:** [July 13, 2021, 9:23pm UTC](https://community.thunkable.com/t/device-cache-experiencing-preview-app-performance-issues/1391904/3 "2021-07-13T21:23:25Z")
I dont use gif ---
**Author:** ![bnice](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/bnice/32/110648_2.png) [@bnice](https://community.thunkable.com/u/bnice)\ **Post date:** [July 14, 2021, 3:40am UTC](https://community.thunkable.com/t/device-cache-experiencing-preview-app-performance-issues/1391904/4 "2021-07-14T03:40:22Z")
I was checking the iPhone cache settings on my iPhone 8, and I am not finding great results. Not even the Thunkable app is showing cache settings.This has been omen thing about apple products that has driven me insane. I was referencing these two sites to make sure. Keep us posted if you see anything different on your side. > **[Speed Up Your iPhone By Clearing Its Cache](https://www.lifewire.com/clear-iphone-cache-4178428)** > > The storage space on your iPhone can fill up fast. Speed up your phone and reclaim storage by clearing cache. Here's what to do. > **[How to Clear Your Cache on an iPhone | Digital Trends](https://www.digitaltrends.com/mobile/how-to-clear-cache-iphone/)** > > Clearing your cache is a simple yet effective way of freeing up storage space on your iPhone and making it run faster. Here's how to do it in a few easy steps. ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [November 8, 2024, 1:19pm UTC](https://community.thunkable.com/t/device-cache-experiencing-preview-app-performance-issues/1391904/5 "2024-11-08T13:19:47Z")