Performance Problem / Delay

Hi,
I use photon 2.5 with an iPad 6th generation (2018) and a WiFi ArtNet controller. The app has a delay of 1-2s between the moment I select something until it actually happens. Have tried every combination, used a different ArtNet controller, etc. The only flaw I can think of is the iPad itself, since more simple DMX Apps have no delay. Has anyone had a similar experience with a 6th gen iPad and is photon to demanding for an older device?

Hello

Do you have tried to unicast to ip of artnet node ?