UE 5.4 Delayed Start on Mobile

Migrated from 5.3 to 5.4 and on Mobile Packaged at the beginning of the level everything goes black, delaying it from starting, only show the Widgets and after 5/6 seconds the items are displayed. I don’t have anything in Level Blueprint’s Begin Play that could cause this delay
I started everything in an empty project and the delay continues
Launch Image is activated and different from version 5.3 which opens everything correctly after the Launch Image in version 5.4 everything goes black and only the Widgets open first
This only happens the first time the game is open, then when opening the game again everything opens quickly like in the version 5.3