# High load times at start and when changing tabs **URL:** \ **Category:** Ask for Help\ **Created:** [February 10, 2021, 2:00pm UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551 "2021-02-10T14:00:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Mihai\_Enache](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/mihai_enache/32/20880_2.png) [@Mihai\_Enache](https://community.glideapps.com/u/Mihai_Enache)\ **Post date:** [February 10, 2021, 2:00pm UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551/1 "2021-02-10T14:00:00Z")
Hello, I have some performance issues regarding load time at start and whenever I am changing tabs. Can I do anything about it? My app is here: [https://apartamente.urbanista.ro/](https://apartamente.urbanista.ro/) I have a database with about 3000 entries and about 4000 links to images. The Google Sheet behind it has about 70-80 columns. Thank you for your help Mihai ---
**Author:** ![Jeff\_Hager](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/jeff_hager/32/43_2.png) [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)\ **Post date:** [February 14, 2021, 6:08am UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551/2 "2021-02-14T06:08:13Z")
You seem to have quite a large set of data and images that you are trying to load on your first tab. That can eat through a device’s cache pretty quickly. Is there any way to catagorize you data to streamline it a little better? Also, do you have a lot of calculations (computed columns)? Any computed columns, which include any columns that are not basic columns, are actually calculated on each user’s device. A lot of calculations can begin to slow things down too. ---
**Author:** ![Mihai\_Enache](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/mihai_enache/32/20880_2.png) [@Mihai\_Enache](https://community.glideapps.com/u/Mihai_Enache)\ **Post date:** [February 15, 2021, 10:03am UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551/3 "2021-02-15T10:03:34Z")
Hi @Jeff_Hager I found this post and it seems that if I use GDE instead of Google Sheets, I would resolve my loading issues. Do you know if there is a tutorial on this? Thank you for your help > [@Glide table - full app building summary](https://community.glideapps.com/t/glide-table-full-app-building-summary/16695): > > Hi Gliders, So, for the launch of the new glide tables, I’ve decided to take a challenge and build a complete full complex app based on glide abilities only, i.e. not using the GS abilities at all and in fact, if possible I could have built the app without connecting a GS altogether. According to the glide team this will be possible in the future. The app I decided to build was an app that manages, tracks and measures the working time for customer per customer and project. I chose this due to … ---
**Author:** ![ThinhDinh](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/thinhdinh/32/49_2.png) [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)\ **Post date:** [February 15, 2021, 11:27am UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551/4 "2021-02-15T11:27:32Z")
Do you have a really big dataset that needs migration? If you plan to reduce your loading time then Glide Tables is the way to go, but they don’t have a way to mass upload the data to Glide Tables yet. ---
**Author:** ![Mihai\_Enache](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/mihai_enache/32/20880_2.png) [@Mihai\_Enache](https://community.glideapps.com/u/Mihai_Enache)\ **Post date:** [February 15, 2021, 11:43am UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551/5 "2021-02-15T11:43:51Z")
@ThinhDinh All I know for sure right now is that I need to improve the loading times. 🙂 Right now, my app first loads in about 20 sec and all transitions from tab to tab are slow. You can access the app here: > **[Urbanista](https://apartamente.urbanista.ro/)** The data I have and use: - apartments table with about 4000 lines (about 60-70 columns - some of them are user specific - and about 10000 links to pictures - some of the links are duplicates) - users: about 500 (but I want to grow them) The tabs: - “Apartamente” shows all the listings in the database. This tab can be filtered using “Criterii principale” and “Criterii secundare” tabs present in the menu - “Recommendations” tab where I am manually adding listings that are ok for each user (I do it through a separate sheet) - “Oferte” tab - similar to Recommendations tab “Criterii principale” and “Criterii secundare” are filtering tabs that users can use to search specific properties based on their criteria. What I tried to do so far is to improve speed by adjusting images. So I started testing cloudimage CDN but the speed didn’t improve so much so I suspect the problem is in the database handling. ---
**Author:** ![ThinhDinh](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/thinhdinh/32/49_2.png) [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)\ **Post date:** [February 15, 2021, 1:32pm UTC](https://community.glideapps.com/t/high-load-times-at-start-and-when-changing-tabs/22551/6 "2021-02-15T13:32:27Z")
Sounds like a prime candidate for Glide Tables, but until they have an option to mass upload it’s gonna be a pain to import.