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Room Reservation App slow loading

We have our Room Reservation v5 app wherein loading of data is very slow. We have tested this in multiple browsers(Chrome, Firefox, Edge, Internet Explore), in both regular and Incognito mode but it is still very slow.

As a workaround, our organization uses these steps to force the app to load the available time for the chosen room:
1. Once you have chosen a room, click on the next day.

2. Wait for a few second then return to today's date so that you can view the available timeslot to book the said room.


Hoping someone could help us with this issue.

Community Support
Community Support

Hi @karloquidoles,

Could you please share a bit more about your issue?

Do you create your app using PowerApps? Could you please share a bit more about your app?

If you use PowerApps to create your app, there are many reasons for that an app can be slow to load, slow to respond, and slow to write to data sources.

The common reasons as below:


1. The app has a large number of controls
2. Shaping expressions (i.e. Filter or Search) that contain clauses that require frequent server calls
3. Shaping expressions that are not delegated
4. Use of inherently slow data sources such as Excel on OneDrive

In order to improve your app's performance, please take a try with the suggestions within the following blog:

There are also some performance tips in canvas app, please check the following article:


Best regards,




Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi Kris,


Thank you for replying on my post.


To give background on this issue, we have created an app to book room reservations. See attached file for reference.


Our Organization is encountering very slow loading of the booking made within the room. As a workaround, we click on the next day then click back to today's date for it to load the available slot within the room.


Regarding the suggestions you made, I will forward this to our R&D Team to check if there are somethings that we can improve on our app.

Hopefully with the information I have provided, you can check in the backend if there is something wrong with our app.


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