What is the search function formula? Is it applied to OnStart property?
Please share the function formula or OnStart property so that we can make further judgment.
Actually, there are many reasons that an app can be slow to load, slow to respond, and slow to write to data sources, please refer to the following blog: https://baizini-it.com/blog/index.php/2017/09/13/powerapps-improving-app-performance/
There are some performance tips you need to note when designing a canvas app, please refer to the following article:
If the issue still exists, please consider submit a support ticket through the following link:
I am using Filter condition to search. This Function is called on button click.
EmployeeID.Text in EmpId
In most occasions, slowness will be perceived by the amount of time an action takes to return control to the user. You could try and use the concurrent function wherever possible to speed loading times. I recently posted a video that covers its usage in more detail -
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