Xamarin Forms apk size is 80 MB

Cannot reduce xamarin apk size below 80 MB. I did the following: 1) enabled proguard
2) Configuration: Release 3) Platform: Active (Any CPU). 4) Enable Multi-Dex: true
5) Enable developer instrumentation (debugging and profiling): false 6) Linking: SDK and User Assemblies(Tried sdk assemblies only also) 7) Supported architectures: Selected all
Visual studio community 2017 version: 15.9.6
Need some help on this...