Navitel navigator, slow startup

I use Navitel as my navigator. It is some months that it starts very slow. It take 3-4 minutes to get ready.
In the startup, it stucks in the screen below, meaning that models are getting ready. I don't know what it means and how can be resolved. Previously the startup used to take about 20 secs. Maybe I have changed some setting and I don't know which setting. There is no option to reload a default setting.

Attachment 291075

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What about deleting it and reinstalling it?
Wouldn't that reset all the default choices?

That didn't help!

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Does Navitel use folders on your SD card or device? If it does, delete the app and delete the Navitel folders. If the app is an android port, try restarting your BlackBerry 10 device before reinstalling the app. I hope this works for you.

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