If you have modern processor from AMD (Ryzen) - x86-variants of AVD cannot work by default.
Android emulator now requires the processors with a virtualization only.
By default Intel processors are supported, but HAXM software for Intel is required also to be installed.
But Windows 10 (even...
@Erel: A dumb question but does B4X take advantage of multiple threads when compiling? I'm assuming it does. (I'm looking into a Ryzen CPU as my next CPU.)