6r0m,
Please review our [documentation][1] as it has quite a bit of suggestions on [packaging projects][2], [mobile game development][3], [performance guidelines][4] and [package blacklisting][5].
Thanks!
Unreal Engine 5.1 Documentation | Unreal Engine 5.1 Documentation
[2]: Packaging Unreal Engine Projects | Unreal Engine 5.1 Documentation
[3]: General Mobile Development for Unreal Engine | Unreal Engine 5.1 Documentation
[4]: Performance Guidelines for Mobile Devices in Unreal Engine | Unreal Engine 5.1 Documentation
[5]: Optimization Guides for Android in Unreal Engine | Unreal Engine 5.1 Documentation