iOS App very slow

I am a new nuki user and I need to say that the whole app is very very slow. If I navigate trough the app it takes a few second till the app is checking „pin“ and „configuration“ loading. It’s the slowest app I‘ve ever seen. Tado is faster and google home or other smart home apps too.

Please NUKI deliver a faster a better app. Also the UX needs here some improvements. I use an iPhone 14 Pro.