Performance problems on mobile devices - tips and tricks?

Dear community,

we are thinking about giving iPads to our sales people so that they can access our CRM data in the ByD system on the go. Unfortunately, we experience a very slow navigation.

When opening the "customers" view on the iPad 3 it takes between 20 and 28 seconds to load the view. Although we have about 20 000 customers in the system, the iPad only loads the first 25 - so this shouldn't be an issue.

The iPhone 5 or the LG Nexus 4 are a lot faster and "only" take 6-7 seconds to load the same view. However, this is still quite slow... And the prefered device would be the iPad.

Do you have any experiences regarding the performance (loading times, etc.) and/or do you have any tips on how to improve it?

One idea of my own was to create a custom view. The test-view with only the object-work-list (OWL) takes about 3 seconds to load, which is already quite fast. But I fear that once I start adding other UI elements to the floorplan the view will also get slower. Can anyone of you confirm this?

Thanks for your help!

Best regards,

Georg