I'm afraid we are unaware of the specifics of your application and it is hard to tell whether recreating your UI would resolve the issues you are facing.
I suggest you check the demos for the controls from the Telerik UI for WPF suite here
. I believe a good starting point would be to review the controls which you plan on using heavily and check their performance. Should any questions about a specific control arise in the process feel free to contact us back and we would gladly assist you.
I hope this helps.
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