libUE4.so is 164 mb way to reduce it?

I have built android apk

After extracting it I found my main.obb is just 10mb and libUE4.so is 164mb

The packaged apk size is 59 mb

On Unreal we only have documentation regarding how to reduce size of main.obb which I already did.

But I think libUE4.so is the more size affecting factor here and can’t find the way to reduce it.